Read the following paragraph and answer the question which follows.

Did you know that lions are friendly? Lions are very sociable, at least with each other. They live in groups called "prides." Once in a pride, the females stay together for life. As a result, the females are able to pass on important knowledge to the cubs, including the pride's territory and the best places to hunt and find water. The females do all the hunting for food. However, the males protect the pride. A lion pride is like a large family.

Which of the following is the topic sentence?

They live in groups called prides.
A lion pride is like a large family.
Lions are very sociable, at least with each other.
The females do all the hunting for food.

Answers

Answer 1

Answer:

Lions are very sociable, at least with each other.

Explanation:

This would be the topic sentence. It gives the overall feel for the remainder of the paragraph.


Related Questions

C. Circle the correct form of the verb in each of the following sentences.
1. I listened /was listening to the radio when I heard / was hearing this fantastic song.
2. When the teacher said / was saying 'Stop!', I still tried / was still trying to finish the last question.
3. I feel really silly! While I danced / was dancing, I fell/was falling and broke / was breaking my
elbow.
4. Tim played / was playing a computer game when his mum called / was calling him for lunch.
5. I looked / was looking for a file on my memory stick when I noticed / was noticing there was a virus.
6. Marie-Claude isn't a Canadian. I believe / is believing she comes from France.
7. Igo/am going to Toronto next Thursday. I usually meet / am usually meeting Brad there.
8. They go / are going to the gym on Sundays, but this Sunday they go/are going to the beach.
9. I always have / am having a coffee before I am leaving / leave for work in the morning.​

Answers

Answer:

1. was listening, heard  

2. said, was still trying  

3. was dancing, fell, broke  

4. was playing, called  

5. was looking, noticed  

6. believe  

7. am going, usually meet

8. go, are going

9.   have, am leaving

19)
*The captain stood with folded arms, silent, observing the work of
his subordinates, but making no sign. Death is a dignitary who
when he comes announced is to be received with formal
manifestations of respect, even by those most familiar with him. In
the code of military etiquette silence and fixity are forms of
deference.
What is the meaning of the word dignitary as it is used in this sentence?
A) a person who is ill
B) a friend or acquaintance
C)
a beast of no importance
D)
someone of high rank and influence

Answers

Answer:

D). someone of high rank and influence.

Explanation:

The word 'dignitary' stands for 'an important or influential person, or one of high rank or position.' In the given excerpt, the word 'dignitary' has been employed as a metaphor for 'death' and signifies its 'high rank' given to it by the military men. They treat it with uttermost silence and respect which is reflected through the captain's motionless state with 'folded arms.' Thus, option D is the correct answer.

Identify the "novel" opportunity that arose in the Victorian period that still persists today with wild popularity.

Answers

Answer:

The "novel" that emerged in the Victorian period and is still popular were stories that portrayed characters with a very difficult life, but who manage to win in the end.

Explanation:

This type of story presented poor characters with very difficult meals and who had to work hard, in the midst of difficulties, hunger, cold, mistreatment, injustice and humiliation. These stories were very moving and stimulated readers' emotions. At the end and after a lot of struggle, the character overcame all difficulties and went around the top, moving the reader who accompanied this journey with happiness.

The "novel" opportunity that arose in the Victorian period that still persists today with wild popularity is:

The underdog overcoming all odds to become successful

According to the given question, we are asked to show the "novel" opportunity that arose in the Victorian period that still persists today with wild popularity

As a result of this, we can see that  during the Victorian period that showed that in most of their plays, the underdog character usually wins in the end, against all odds.

This theme has continued to be popular till today.

Read more about Victorian period here:

https://brainly.com/question/1155331

Community service ideas???

Answers

Answer:

Look at the picture Below

Explanation:

What is one example of a simile from “A Blessing”? What two things are being compared?

Answers

Why did the donkey leave home? The town musicians Of Bremen

In lines 67-74, what did money replace in Scrooge's life?
A.family
B.dreams
C.love
D.hope

Answers

Answer:

Hope

Explanation:

Answer:

hope

Explanation:

Read the sentences.

Throughout her childhood, Maron had an unnatural fondness for sweets. ___________, she saw the dentist often.

Which transitional word indicates a lapse of time?
A Alternatively
B Assuredly
C Subsequently
D Furthermore

Answers

Answer:

C, subsequently

Explanation:

Which phrase defines a demand schedule? A. a chart showing the impact of demographic changes on demand B. a table showing the quantity demanded for a good at different prices C. a graph tracking the increase in demand at decreasing prices D. a report analyzing factors causing a change in demand for goods

Answers

Answer:

The answer is B

Explanation:

What type of Figurative language is this

“The truth is, that he tried to keep down his terror, for the specter’s voice disturbed the very marrow of his bones.”
and what does it mean ???

Answers

Answer:

This is a hyperbole, I believe.

Explanation:

Hyperbole provide a use of exaggeration to make a more impactful effect on it's readers. The quote itself means that the specter is unbelievably frightening to this person. In a bit more depth, stating that "the specter's voice disturbed the the very marrow of his bones" refers to how blood cells are produced. Without blood cells, you're body can't distribute oxygen, stating that this frightening creature was in complete control of him.

SHARKS' TEETH
Langston Carter

The day we found the sharks' teeth was foggy and cool. Moisture hung in the air so thick you could almost see it sparkling in the dim sunlight. There were days, early in the summer like this one, where it seemed there was more water in the air than in the bay. We had beached the boat and stepped out on the recently cleared spit of land. The ground had a light dusting of white sand over an under layer of dried black mud. It looked like a recently frosted chocolate cake, though the frosting was spread a bit thin for my taste. The ground was solid, but we knew from experience that it was full of fiddler crab holes, and would be underwater at the first super-high tide. Mysteriously, to us anyway, someone wanted to build a house there.

We often came to these spots to look for artifacts. Our beach, our summer home, had been a fishing camp for as long as anyone living could remember. The oldest stories told of travelers coming down to the edge of the sea, lining up to fill their wagon beds with salted fish to take back home. Old decaying cabins still lined the beach. Rotting nets, hung out to dry in the last century, decorated their weathered walls. Their broken faces spun stories in our minds. The fishermen who, tanned and wrinkled from sun and salt, hauled their nets full of splashing mullet in to cheers from the waiting crowds. The bounty of the sea lightened everyone's hearts, and the smell of roasting fish filled the damp air. Women fanned themselves from wagon seats. Children splashed in the shallow edges of the bay. It was a scene we had acted out as youngsters, building an imaginary bridge to a life we would never fully know.

What is one way the narrator connects the present moment to the past?

By describing imagined scenes
By describing the land as if it were food
By including details about the environment
By recounting his youth

Answers

Answer:

D. Recounting his youth

Explanation:

The first paragraph deals with mainly with the author bringing up how they found shark teeth when they were younger. That whole first paragraph is essentially the author retelling a story of finding the shark teeth. The second paragraph then transitions to the author explaining how they still look in the same spots for artifacts, in the present. Then furthers more into the present day of the author. Therefore, the most logical answer, in my opinion, would be D. By recounting his youth.

I hope this helps!!

- Kay :)

HELP WILL GIVE BRAINIEST AND 20 POINTS!!! EXPLAIN THROUGHLY AND GIVE 5-6 SENTENCES, WHY DID PEOPLE WANT/VOTE KAMALA HARRIS BECOME VICE PRESIDENT, WHAT DO THEY SEE IN HER BASED ON THE TYPE OF PERSON SHE IS?? ONLY POSITIVE ANSWERS BC ITS FOR SCHOOL

Answers

The reason why people voted for Kamala Harris is because 1 she’s Been a defender and reproductive rights and healthcare. She stood up for communities mostly people of color with low incomes. She is also the first Women Vice President and Vice President of color. When she gets into office Kamal and Biden are going to have a coronavirus plan that will hopefully slow down the cases that will be set to activate the day she is in office. Hope this helps

A few causes contributed to my treehouse collapsing. It wasn’t waterproofed, and it was hit by several heavy rainstorms. The damp wood began to rot. Whenever we climbed into the treehouse, you could feel some of the nails pulling free from the branches. One night, the treehouse fell out of the tree.

Which is the topic sentence?

a | Whenever we climbed into the treehouse, you could feel some of the nails pulling free from the branches.
b| One night, the treehouse fell out of the tree.
c| A few causes contributed to my treehouse collapsing
d | The damp wood began to rot.

Answers

Answer:

the answer is C. because it makes sense

Select the correct text in the passage.
Which sentence suggests the author's purpose for writing the passage?
AmeriCorps and You
from the Corporation for National & Community Service

AmeriCorps is an Opportunity
Joining AmeriCorps is a way to put your idealism into action. As an AmeriCorps member, you can help make the world a better place: help children learn, protect the environment, or bring needed services to a low-income community.
There are opportunities in AmeriCorps for anyone who is willing to do something special, something unique, something exciting.As an Americorps member, you can choose the way you wish to serve and gain benefits while helping others.

AmeriCorps is an Experience
AmeriCorps is a real-life education and work experience wrapped into one. As a member, you will learn teamwork, leadership, responsibility and other essential skills that will help you for the rest of your life. And you will gain the personal satisfaction of taking on challenges and seeing results.

AmeriCorps Offers Tangible Benefits
Most AmeriCorps members receive student loan deferment, and training, and may receive a living allowance and limited health benefit options.After you complete your term of service, you will also receive a Segal AmeriCorps Education Award to help pay for college, graduate school, or vocational training or to repay student loans.

Americorps Offers Different Types of Programs
Americorps NCCC
AmeriCorps NCCC (National Civilian Community Corps) strengthens communities and develops leaders through direct, team-based national and community service.In partnership with non-profits, local municipalities, state governments, federal government, national and state parks, American Indian tribes, and schools, members complete service projects throughout the region they are assigned.
AmeriCorps NCCC is a full-time, team-based residential program for men and women age 18-24. Members are assigned to one of five campuses—Denver, Colorado; Sacramento, California; Baltimore, Maryland; Vicksburg, Mississippi; and Vinton, Iowa.
Americorps NCCC is modeled after the successful programs of the Civilian Conservation Corps of the 1930s and the U.S. military. AmeriCorps NCCC is built on the belief that civic responsibility is an inherent duty of all citizens and that national service programs work effectively with local communities to address pressing needs.

Americorps VISTA
VISTA was founded in 1965 as a national service program to fight poverty in America. In 1993, VISTA was incorporated into the AmeriCorps network of programs.
Today, more than 46 million Americans live in poverty. AmeriCorps VISTA taps the skills, talents and passion of more than 7,000 Americans annually to support community efforts to overcome poverty.
By serving with AmeriCorps VISTA, you can make a tangible difference. And, you'll find the fulfillment that comes from using your knowledge and skills to help those in disadvantaged circumstances turn their dreams into reality.

Americorps National
AmeriCorps State and National supports a wide range of local service programs that engage thousands of Americans in intensive community service each year. We provide grants to a network of local and national organizations and agencies committed to using national service to address critical community needs in education, public safety, health, and the environment. Each of these organizations and agencies, in turn, uses their AmeriCorps funding to recruit, place, and supervise AmeriCorps members nationwide. Individuals can serve as AmeriCorps members in every state, U.S. territory, and on tribal reservations.
Full-time AmeriCorps State and National members are given a living allowance; health care; childcare, if they qualify; and become eligible for the Segal AmeriCorps Education Award upon successful completion of the program.
ANSWER CHOICES
a.As an Americorps member, you can choose the way you wish to serve and gain benefits while helping others.
b. Most AmeriCorps members receive student loan deferment, and training, and may receive a living allowance and limited health benefit options.
c.AmeriCorps NCCC (National Civilian Community Corps) strengthens communities and develops leaders through direct, team-based national and community service.
d. Full-time AmeriCorps State and National members are given a living allowance; health care; childcare, if they qualify; and become eligible for the Segal AmeriCorps Education Award upon successful completion of the program.

Answers

Answer:

A.

Explanation:

AmeriCorps is a civil society program participated voluntarily by the adults to  serve the community. The program is financially supported by the U. S. Federal government and other donors such as corporations, foundations, etc.

Adults that age between 18-24 can participate in this program and choose to serve their community in different ways, all the while enjoying benefits by being the member of AmeriCorps.

The central idea of the given text is to persaude readers that they can choose the way to serve their community and enjoy benefits of being an AmeriCorps member, and help others.

Therefore, option A is correct.

Answer:

the other answer right fam

Explanation:

In the excerpt from Mina’s Journal. What makes Dr.Van Helsing’s plan heroic?

Answers

Answer:

His actions - He saved lives

Explanation:

Van Helsing is most importantly considered a hero, not only because he saved Mina's life, but because he was able to save Morris, Jonathan, and Arthur's lives with his knowledge. He kept them out of harm's way by providing them with a cross and garlic which he knows will keep vampires away.

Define story in your own word

Answers

A story is a list of events going in a certain order leading to an outcome that most likely has a theme in the end.

what's the meaning of the below words:-
hope, Sharon, senorita, dreams, genius, fortune,honey ​

Answers

Explanation:

Hope: a feeling of expectation and desire for a particular thing to happen.

Sharon: as a girl's name is of Hebrew origin meaning "a fertile plain". In the Bible, Sharon refers to flat land at the foot of Mount Carmel.

Señorita: a title or form of address used of or to a Spanish-speaking unmarried woman, corresponding to Miss.

Dreams: a series of thoughts, images, and sensations occurring in a person's mind during sleep.

Genius: an exceptionally intelligent person or one with exceptional skill in a particular area of activity.

Fortune: chance or luck as an arbitrary force affecting human affairs.

Honey: a sweet, sticky yellowish-brown fluid made by bees and other insects from nectar collected from flowers.

Explain how the diction used in the text
contribute to the development of its theme
and tone. Cite evidence from the text in
your response.

Answers

Answer:

Please attach the text- 10th grade teacher!!

Explanation:

Answer:

Diction tells a lot and highly contributes to the meaning and tone of a poem because its your word choice. The different words you use can completely change your poem.

Explanation:

This goes for any poem or text. It is preferred you attach the document you are referring to.

The following sentence is an example of which type of POV? "The landlord chuckled again with his lean chuckle, and seemed to be mightily tickled at something beyond my comprehension.

Answers

Answer:

Third person

Explanation:

The answer is thats its in third person

Witch statement express the central idea of the text?

Answers

Answer:

e

Explanation:

90 points !!!!!!!!!!!!!!! Need Help !!!!! Essay Theme: “The Challenges of Online and In-Person Learning in a Pandemic Environment” I need at least 6 paragraphs !!!!!!!!

Answers

Answer:

Parents and students across the U.S. are heading into summer break, but on their minds is what will happen when it comes time to go back to school in the fall. Some schools are preparing to bring a third to a half of their students into the schools at a time, alternating days or weeks with the other half. Remote learning will likely remain in the mix.

The current situation with schools closing during the  pandemic is an emergency response to contain the spread of the coronavirus. Remote teaching is a “temporary shift of instructional delivery to an alternate mode due to crisis circumstances,” says Rebecca B. Reynolds at School of Communication & Information of Rutgers University. “The primary objective is to quickly provide temporary, reliable access to instruction and support during a crisis, not to re-create a robust educational ecosystem.” Although it’s not ideal to continue with all remote learning in the fall, some online learning may be the safest way for students to go back to school.

Kindergarten through 12th grade

Although some children regularly attended online schools before the pandemic, the large majority of children had no prior experience with remote learning before the pandemic. For K-12 education, “online learning can be as good or even better than in-person classroom learning,” says Christine Greenhow, Associate Professor of Educational Psychology and Educational Technology at Michigan State University. “Research has shown that students in online learning performed better than those receiving face-to-face instruction, but it has to be done right.”

Online learning can help students flourish. The best online learning combines elements in which students can go at their own pace and are set-up to think deeply and critically about subject matter with elements in which students go online at the same time to interact with other students, their teacher and the content, says Greenhow. The students can have more control over their learning process in an online learning environment.

However, there are disadvantages to online learning. Teachers need the right tools and support to teach online. Because of the  pandemic, many have had to rethink their classes entirely and many are struggling under increased workloads while learning new techniques. It’s important to realize that learning online is not as simple as uploading and delivering content, says Michelle Miller at Northern Arizona University. “Experts agree that the power of online learning doesn’t come from the content itself, but rather from the active engagement students have with that content, with the faculty, and with one another.”

Explanation:

1. Explain what the writer means by these phrases
a) Nightmare images
B) Unreliable tour packages
C) Cowboy hoteliers

Answers

Answer:

A

A nightmare, also called a bad dream is an unpleasant dream that can cause a strong emotional response from the mind, typically fear but also despair, anxiety or great sadness

Explanation:

C

a man whose job is to look after cows in certain parts of US

in what way did santash not like the traditional life in the family?​

Answers

Answer:

from which chapter the question is.so that i can help you

The exhibit models, thelr accompanying text, and the overall layout of the Center organized the principal contents of the solar system by objects of like properties, rather than as enumerations of planets and their moons. The formal tone is best maintained by which of the following summaries? A. The center was really great because everything was so organized by what things were alike. B. There were planets and moons and such everywhere until they put the parts together that were a lot like each other. C. The typical museum layout was to organize celestial objects by order, instead of the more logical grouping of common features. D. Everything in the museum used to be all over the place, but then it finally got fixed up into groups of the same things together.​

Answers

Answer: C

Explanation:

Words/phrases like: things; a lot like; really great; tend to give off a less formal tone especially in this context.

Out of the given choices, the best formal tone for the provided excerpt can be symbolized as, ''The typical museum layout was to organize celestial objects by order, instead of the more logical grouping of common features.'' Therefore, the option C is correct.

What is the significance of a formal tone?

A formal tone is referred to or considered as such a tone in which the language is expressed in a way that could be understood by anyone. A formal tone also includes straightforward language. Furthermore, the language has to remain respectful.

The given sentence includes use of language that is generic to the language of a formal tone. It also does not include any words that include words or phrases of a casual language. Furthermore, the language is straightforward and directly to-the-point.

Therefore, the option C holds true regarding the significance of formal tone.

Learn more about a formal tone here:

https://brainly.com/question/14330525

#SPJ2

Juxtaposition is when two unlike things are positioned next to each other.

Which of the following is an example of juxtaposition?

A

“It was a bright cold day in April”
B

“It was a dark and stormy night.”
C

“It was the best of times, it was the worst of times.”
D

“There were no marigolds in the fall of 1941.”

Answers

Answer:

A

“It was a bright cold day in April”

Explanation:

Answer:

AAAAAAAAAA

Explanation:

" their expectant eyes were drawn to my face as if i were a saint about to enlighten them with my wisdom"
This sentenve establishes a tone of...
a. reverence
b. concern
c.fairness.
d. cynicisym​

Answers

Answer:

c

Explanation:

This sentence establishes a tone of fairness. Hence, option C is correct.

What is the tone of fairness in literature?

By presenting only the facts and allowing readers to infer their own conclusions from them, objectivity in journalism strives to assist readers in coming to their own conclusions about a story. Whether or not they like or agree with the facts, journalists should present the facts in order to remain objective.

Making decisions without bias is a trait that defines fairness. Fairness is something that judges, umpires, and instructors should all strive towards. The word "fairness" derives from the Old English word "faeger," which means "pleasant, attractive." Given that the word is also used to denote physical beauty, this makes logical.

He possessed a genuine sense of fairness and detested injustice. the attribute of treating people equally or in a way that is just or reasonable.

Thus, option C is correct.

For more information about tone of fairness, click here:

https://brainly.com/question/13362326

#SPJ5

The Centers for Disease Control recommends getting a flu vaccine each fall.
a. ethos
b. pathos
c. logos

Answers

Answer:

A. ethos

Explanation:

This is an example of Ethos because it is using a credible source source as evidence.

B is the answer bc the answer is b

need help asap! im working on my english assignment but I'm in a bit of a problem. i can't find anything in the article related to this!

Answers

Answer:

An awful lot of questions but here I go

Explanation:

1. An intervention is when you butt in for the sake of salvaging/improving something.

2. Middle school students are younger and more energetic so they will more than likely have more trouble focusing than high schoolers.

3. I mean it's not too surprising. English is one of the core subjects that requires support from your peers and an educated teacher so that they can give you their input,

4. I think as a student we have a lot of responsibility in adapting to our new environment but we cannot do it alone without the support of the school.

5. The parent does not have a big role in assisting the student in online school since many parents are working during this time and all the parents can really do is give you space and time to work.

6. The school has the second most or first most responsibility when it comes to helping students adapt because a lot of students cannot afford the technology necessary to do online learning and it must also deal with the technical issues of coordinating a whole new system.

7. A child/student needs structure to prosper but it also needs something new sometimes. I conclude that without structure we are a lot more stressed and feeling of being overwhelmed are right around the corner.

8. You have to answer this one because I am not you.

9. I believe not having enough time to do assignments has a big role in students not completing assignments because students have responsibilities as well be it taking care of a sibling, chores, and even a job. Being distracted also contributes to this, we as students sometimes have a short attention span and we need something to keep us concentrated and quite honestly, online school isn't providing that.

10. No it is not realistic, you cannot compare two different systems and see which one performed better because we obviously know which year had a better performance and that was last year's. This year we are in a completely new and different learning environment that has brought new challenges that not everyone can adapt to.

In the "Editing" part of the Writing Process you
must check for spelling and grammar

O True
O False​

Answers

Answer:

true

Explanation:

my teacher tells me all the time

it’s true because checking your errors is apart of editing

Circle the verbs.
The leader will
designate or appoint
the new speaker.

Answers

designate and appoint

Why does Charlie leave the factory in Flowers for Algernon?

Answers

Answer:

He lost his job because the only reason people wanted him there is because he is dum, and now he is smart.

Explanation:

Other Questions
Which can be concluded from a comparison of the two phylogenetic trees? Phylogenetic trees are not subject to change. Classification can change with new discoveries and evidence. Classification does not change with more evidence. Phylogenetic trees are inaccurate. What qualities do you think Columbus must have possessed to plan and carry out his voyages? Describe one interesting fact about continental tropical air masses what is pre-historic? The angle measures of a triangle are shown in the diagramwhat is the value of x?pls hurry its due soon Which of the following women served as the first female chief of the Cherokee Nation?A.Rosella HightowerB.Wilma MankillerC.Jeane KirkpatrickD.Shannon LucidPlease select the best answer from the choices providedABCD Theresa creates an experiment where she mixes two red-colored substances together in a container and observes the solution slowly changing from red to blue for the next eight minutes. The solution becomes completely blue after eight minutes. What does this represent about the type of change happening in the container? How many forms do all Spanish verbs have? i.e. when you conjugate a verb, how many different conjugations are there per verb?fourfivesixtwo Which of the following is a characteristic shared by both Brazil and Mexico?A.A prime minister is the head of government.B.Corruption and high crime rates are a serious challenge.C.There is no freedom of religion or freedom of speech.D.Citizens first get the right to vote at age 21.Please select the best answer from the choices providedABCD The DNA triplets that code for amino acids are common toA) humans onlyB) plants and animals C) ProkaryotesD) all living things If you know this pls give me the answer, thank u! I need help with this :( will mark brainliest Which statement best describes the events of February 4, 1861? Delegates in South Carolina met to vote on whether or not to secede from the Union. Citizens went to the polls to vote for Lincoln, Douglas, Breckinridge, or Bell for the presidency. Confederate troops fired on Fort Sumter and forced Union soldiers to surrender. Delegates from several Southern states met to form a new Confederate government. A-ha- Take On Me music videoWrite the exposition, rising action, climax, resolution, and conclusion here. I need help fast please, Im not that smart so I dont know how to do this correctly George is standing at the end of a 72 ft shadow cast by a tall building. The angle of elevation to the top of the tall building is . What is the height of the building? 7. Base your answer to the following question on the information below and on your knowledge of biology A student designed an experiment to investigate a claim that athletes would have lower heart rates than nonathletes during exercise. After the students classified themselves as an athlete or a nonathlete, their resting pulses were determined. Then all the students performed the same exercise for four minutes and their heart rates were determined by recording the pulse rate in beats per minute. The students continued to measure their pulse rates for an additional four minutes. The average heart rate per minute for each group was determined. The data were recorded, as shown on the table below Average Heart Rate Response to Exercise (beats per minute) Time (minutes) Athlete Students Nonathlete Students Resting Pulse 68 72 1 76 78 2 82 90 Exercising Period 3 115 95 110 4 130 5 100 125 6 95 120 After Exercise 7 85 100 8 68 95 2.4 To improve the validity of the conclusion reached in this experiment, the students should repeat the experiment A) disregarding any data that don't fit the hypothesis B) with a larger number of athletes and nonathletes C) comparing the heart rates and breathing rates of males and females D) with the athletes doing different exercises than the nonathletes What is the y-value of the solution of the system of equations given below?3x + 2y = -6y = 2x + 4 A plastic ball is tied to 1 end of a long string and is swung in a horizontal circle. If it takes to complete 1 circle, what is the acceleration of the ball What is the problem the author refers to in the article? What does this same experiment( the picture) tell you about light waves? Explain.