How did new scientific knowledge help the building of the Panama Canal?

A. Fewer workers got sick from malaria and yellow fever.
B. Radios helped workers stay in touch with their families.
C. Better nutrition led to more work being done by laborers.
D. Airplanes were able to deliver supplies more quickly.

Answers

Answer 1

Answer:

The correct answer is A!!

Explanation:

Fewer workers got sick from malaria and yellow fever.A canal in Central America would make it easier to reach the Pacific Ocean from the eastern coast of the United States.New scientific knowledge help the building of the Panama canal because there was a decrease of workers getting sick of malaria and yellow fever. It was Colonel Gorgas, the Chief Medical Officer, who have read about discoveries linking mosquitoes and malaria. Due to these readings, he succeed in eradicating the cause of the disease therefore a decrease in people getting sick.

Hope this helps!!

Answer 2
The correct answer is A

Related Questions

I needdddddd helppppppppppp
Directions:

Imagine you are the President of the United States during the Civil War and you are faced with fixing
the issue of slavery in your country. You have to write a document that talks about how you are going
to end slavery, similar to President Lincoln's Emancipation Proclamation or the Gettysburg Address. In
a short paragraph of about 4 sentences, what would you say?

Be sure to refer to the notes on the Emancipation Proclamation and the Gettysburg Address for
reference. Also keep in mind how the Southern States may react negatively to your Emancipation
Proclamation or Gettysburg Address since they want to keep slavery and losing their slaves would be
bad for their economy.

Answers

Explanation:

Just say, "No more slavery." Boom. Problem solved.

What were some of the most valuable commodities moving through the kingdoms in Ghana in the 5th through the 15th century?

Answers

Answer:

trans Saharan gold as one of the most valuable commodities found moving through the Kingdoms of gana in 5th to 15th century

Explanation:

I forgot why but i studied this in school i while ago and i aced my test on this stuff

Select all the correct answers.
The Mesoamericans developed which inventions or technologies?
selective breeding
quern
fire
the number zero
rudders

Answers

Answer:

the mesoamericans developed rudders

Protect Your Pets (Monday Intervention 11/30 6 of 7 6 of 7 Items Item 6 POSSIBLE POINTS: 0.91 Which head circumference measurement had no entries? (Mark all that apply) 9 9 10 10 11 11 12 12 13 13 14 14 15 15 16 16 17 17 18 18 19

Answers

Answer:

9,10,11,12,13,14,15,16,17,18,19

Explanation:

becuase it counted up by 1

PLEASE PLEASE HELP ME ;-;

Why didn’t President Polk want to go to war with Great Britain over Oregon?

A: Polk was not interested in acquiring Oregon.

B: Polk expected to go to war with Mexico over Texas.

C: Polk wanted to promote trade with British fur traders.

D: Polk realized not many Americans wanted to settle there.

Answers

Answer:

B or 2

Explanation:

Why didn’t President Polk want to go to war with Great Britain over Oregon?

Answer: Polk expected to go to war with Mexico over Texas.

new you tube guests for hire!

The answer is Option B.

What did Polk want to do with Oregon?

During the 1844 campaign, Polk had pledged to settle the boundary of the Oregon Territory with Britain, and once in office, he moved quickly to acquire sole title to Oregon.

Did Polk want to annex Oregon?

While Polk desired California and New Mexico, he did not want the United States to annex all of Mexico, which the more radical expansionists supported. Polk gained the Oregon Territory through successful negotiations with the British and wanted to do the same with California and New Mexico.

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Great Britain had many colonies in North America what was the purpose of these colonies according to the ideas of mercantilism
A. To trade with the countries other than Great Britain

B. To create manufactured products

C. To produce raw materials for Great Britain

D. To increase well for colonial merchants

Answers

c

Explanation:

try it out because the Great Britain, also know as the Mother Country, turn raw materials into something they can sell back to the colonies

Answer:

it is C

Explanation:

which of these places were know to have the best army? Sparta, Athen, or Persia?

Answers

Answer:

PERSIA!!

Explanation:

Answer:

Sparta

Explanation:

Nearly everyone in ancient Greece agreed that Sparta had by far the best army. Athens, by far, had the best navy of all of the ancient Greek city-states. But the men in all the city-states were capable fighters.

What was the capital of Egypt in the old kingdom

Answers

Answer:

Memphis is the capital back then

What was one result of landlords not taking care of tenements in the early 1900s?
A)People only lived in them for short periods of time.
B)People got sick due to unsafe living conditions.
C)Rooms were overcrowded despite regulations.
D)Elevators were usually broken and out of order.

Answers

Answer:

B: People got injured in unsafe living spaces.

Explanation:

edg2021

Which statement describes how the passage of the Selective Service Act affected World War I? (5 points)

a
It improved the chances for the Central Powers to be victorious.

b
It allowed time for France to build up its defenses on the German front.

c
It made it more difficult for the U.S. government to get public support for the war.

d
It improved the ability of the United States to provide military support to the Allies.


PLEASE HELP QUICK!

Answers

the answer is d! hope i helped in time

After King George III rejected the Olive Branch Petition, Parliament passed the Prohibitory Act, which
closed American ports to overseas trade.
addressed the colonists’ most significant complaints.
called on British forces to attack the colonies.
stopped the British Navy from seizing American ships.

Answers

Answer:

Closed American ports overseas

Explanation:

The Prohibitory Act was British legislation in late 1775 that cut off all trade between the Thirteen Colonies and England and removed the colonies from the King's protection.

(The colonies were rebelling and King George lll didn't want them trading and become independent from Britian)

Answer:

A. closed American ports to overseas trade.

Explanation:

I got 100% on my test

How many descendants of Isabella and Ferdinand shown

Answers

Answer:

i think 6

Explanation:

A Muslim house of worship is called what?

Answers

Answer:

The English word "mosque" denotes a Muslim house of worship. The word evolved from the Arabic term masjid, which means "place of prostration." During prayer, Muslims briefly kneel and touch their foreheads to the ground as a sign of submission (literally, Islam) to the will of God. The Origin of the Mosque.

Explanation:

I hope this helped solve your question :)

Answer:

"mosque"

Explanation:

the English word mosque denotes a Muslims house of worship

{marill2006}

Which of the following is not a U.S. territory?
O U.S. Virgin Islands
American Samoa
O Guam
O Great Britain
Puerto Rico

Answers

Answer:

I think the answer is Great Britain.

Explanation:

Sorry if that's wrong!!

Describe two events that happened after the American Revolution. Were these events caused by the American Revolution, or is there only a correlation between these events?

Answers

1760s

1763

10 February: Signing of the Treaty of Paris
Ending the Seven Year’s War, also known as the French and Indian War in North America. France ceded all mainland North American territories, except New Orleans, in order to retain her Caribbean sugar islands. Britain gained all territory east of the Mississippi River; Spain kept territory west of the Mississippi, but exchanged East and West Florida for Cuba.

7 October: Proclamation of 1763
Wary of the cost of defending the colonies, George III prohibited all settlement west of the Appalachian mountains without guarantees of security from local Native American nations. The intervention in colonial affairs offended the thirteen colonies' claim to the exclusive right to govern lands to their west.

1764

5 April: Sugar Act
The first attempt to finance the defence of the colonies by the British Government. In order to deter smuggling and to encourage the production of British rum, taxes on molasses were dropped; a levy was placed on foreign Madeira wine and colonial exports of iron, lumber and other goods had to pass first through Britain and British customs. The Act established a Vice-Admiralty Court in Halifax, Nova Scotia to hear smuggling cases without jury and with the presumption of guilt. These measures led to widespread protest.

Which of the following statements explains the position of those who oppose expanding nuclear power plants in the United States?
A.
The disposal of used nuclear fuel rods and the security of the plants themselves is of concern.
B.
Nuclear energy is an unclean energy source and would only increase air pollution.
C.
The amount of nuclear power plants in the United States has already surpassed industries producing fossil fuels.
D.
The United States would have to rely on a foreign supply of uranium, thus increasing national debt and dependence.

Answers

Answer:

A. The disposal of used nuclear fuel rods and the security of the plants themselves is of concern.

Explanation:

If the waste from the nuclear disposal is leaked, it could took thousands of years before the radioactivity is gone from the environment. If people live in close proximity with this radioactive substance, they will develop dangerous health issues that often resulted on death.

Beside the dangers of it disposals, nuclear power plants could create a national security risk. Meaning that it can easily be target by terrorist groups who want to create overwhelming damage in one action.

Answer:

A.

The disposal of used nuclear fuel rods and the security of the plants themselves is of concern.

Explanation:

i got it right on the test.

Describe social and political effects of industrialization on Japan

Answers

Answer:

A lot goes into industrialization or the process of developing an industrial economy. An industrializing nation has to build the infrastructure for factories and shipping, find a place in global economic networks, transition local economies into new methods of production, and deal with social and cultural changes that accompany these transitions. It's a big deal, and every nation handles this process a little differently. In Japan, industrialization was something that the government consciously undertook but which happened in two different eras and in two different ways.

Explanation:

Drag each label to the correct location.
Place each figure in order from most powerful to least powerful on the two hierarchy diagrams.

archbishops and bishops
cardinals
king
knights
nobles
peasants and serfs
pope
priests

Answers

Pope
King
Nobles
Cardinals
Archbishops and bishops
Knights
Priests
Peasants and serfs

(Confusing question so I added two separate ones if that helps)

Social hierarchy

King
Nobles
Knights
Peasants and serfs

Religious hierarchy

Pope
Cardinals
Archbishops and bishops
Priests

Answer:

          Feudalism:                                      Catholic Church:

              King                                                      Pope

            Nobles                                                Cardinals

           Knights                                    Archbishops and Bishops

  Peasants and Serfs                                       Priests

             

Explanation:

I know this because my class is currently learning about this in Social Studies right now.  The reason I wrote this answer is because the other person's answer is very confusing, and I can't tell which goes to which pyramid diagram.

I hope this helps!!! :D  

Please give the Brainliest! :)

HELP ME PLEASEEE!! I'll give 20 points to the right answer!!

What happened as the number of public schools in the South began to grow? A. Blacks asked to have separate schools. B. Both whites and blacks went to the same schools. C. Blacks got the same education as whites. D. Blacks and whites were kept in separate schools.​

Answers

D. Blacks and whites were kept in different schools:)

Answer:

D

Explanation:

Did it on apecs

Which of the following is a viral infection that most adults contract 2 to 4 times a year? A. bacterial pneumonia B. strep throat C. influenza D. the common cold Please select the best answer from the choices provided. A B C D

Answers

Answer:

This answer is D!!

Explanation:

Just took the test on edg 2020

Answer:

D

Explanation:

HELP MY MOM IS MAKING ME DO THIS!!!!!!!
write a paragraph based on the second map (Reverse Migration 1980-2010). Your paragraph needs to include where African Americans are migrating from and to, and why do you think the migration pattern changed? What factors do you think contributed to this change?
THANK U!! AND I'LL GIVE U BRAINLIEST

Answers

Answer:

The Great Movement, the migration of Southern-born African Americans to places with greater social and economic prospects in the early twentieth century, played a crucial role in the lives of millions of people. There were suggestions at the beginning of the Great Migration and as it was underway that migration from the South could be an important way to improve the health of African Americans (Wright, 1906; Myrdal, 1948), but also questions about unfavorable health conditions in urban areas to which blacks migrated (Bureau of the Census, 1918). However, to our knowledge, no study has assessed the long-term effect of the Great Migration on migrant people's health outcomes. Our paper addresses this issue, focusing on mortality among African Americans born in South Carolina, Georgia, Alabama, Mississippi, and Louisiana states of the "Deep South."

Explanation: Sorry that its long, i tried to keep it short ;^;

How did the rise of the Populist Party influence the development of the Democratic and Republican Parties?

Answers

Answer: Farmers were locked into debt due to decreasing prices, high shipping costs, and excessive interest rates from banks. The goal was to change political corruption and economic inequality.

Explanation:

Who is Francis Marion?

Answers

Answer: Military officer

Explanation: Francis Marion, also known as the Swamp Fox, was a military officer who served in the American Revolutionary War.

How did slavery cause sectionalism in the antebellum era?

Southern politicians supported the expansion of slavery into new states.
Northern politicians backed the spreading of slavery only into far western territories.
The South wanted slavery to continue in existing states but not in new states.
The North wanted slavery to expand slavery into only a few Northern states.

Answers

Answer:

Southern politicians supported the expansion of slavery into new states

Explanation:

The South tried their hardest to get slavery in the new territories, with Texas and Missouri both being notable examples. The north did not want the South to make slavery constitutional, and they did not support the expansion of slavery whatsoever.

Slavery caused sectionalism in the antebellum era as Southern politicians supported the expansion of slavery into new states. Thus the correct answer is A.

What is slavery?

Slavery is refer to the situation when an individual or a country is owned by someone else who has power in comparison. In the slavery, the entity which is considered slaves does not have any authority to make their own decisions.

The legal, social, intellectual, and geographic inequalities within the United States resulted in a crisis of sectionalism. Slavery was the primary issue that caused conflict between the Northern and Southern states.

The white Southerners supported the continuation of slavery in new states because they felt it was their ethical and practical duty to carry it out in order to secure their economic and social health.

Therefore, option A is appropriate.

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what changes took place in the workface during the late 19th and early 20th century

Answers

Answer:

Machines came into use, people were paid less, they were forced to work long hours, etc.

Explanation:

I remember learning about this a while ago, it was a horrible time to live in

Name 2 ways that the geography in Eurasia
made it easy to grow crops in multiple locations
across the continent using the video guns germs and steel.

Answers

Answer:

Eurasian geography has a set of large rivers in the middle of large plains, and the rivers make the plains fertile by distributing fertilizing sediment when they overflow their shores.

These rivers are: the Tigris, the Euphrates, the Indus, and the Yellow River, and where precisely these rives, along with the Nile in Africa, where the first human civilizations emerged.

Another reason is that Eurasia has many areas with easy access to the sea, because of the many inlets, peninsulas, gulfs, inner seas, and canals that dot the continent.

What did the British East India Company do to dominate most of India?

Answers

Answer:

Explanation: 1. B, 2.C, 3.D, 4.C, 5.D, 6.B, 7. C, 8.B trust me. ;D

They practically operated as a nation inside India, having their own army, parliament, law profession, and market towns throughout India.

What is the British East India Company?

An English corporation called the East India Association was established in order to profit from commerce with India and East and Southeast Asia. It was established as a monopoly business organization by royal prerogative just so England might participate in the East Indian trading posts.

British East India Company obtained commercial privileges on the outskirts of the Mughal Empire. The British East India Company soon retained power of three-fifths of India as the Imperial Empire fell into disarray.

Although the emperor welcomed Lord Macartney, he felt the British ambassador had offended him and refused Britain's wishes.

Learn more about British East India Company, Here:

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!URGENT! I NEED ANSWERS AS SOON AS POSSIBLE PLEASE!!
Which of the following events occurred during the Mexican national period in Texas history?
A. Texas joined the confederacy

B.the treaty of Guadalupe hidalgo was signed

C.oil was discovered at spindle top in east Texas

D.Stephen F Austin established colonies in Texas

Answers

Answer:

D

Explanation:

I took texas history last year

Answer:

D

Explanation:

Stephen F Austin established colonies in Texas. I hope this was the correct answer for it and not to late.

Describe the teachings of Quran about Salat,Sawm and Zakat. Mention Surah names and verse numbers.
:)​

Answers

Answer:

Prayer (salat). Muslims pray facing Mecca five times a day: at dawn, noon, mid-afternoon, sunset, and after dark.

Alms (zakat). In accordance with Islamic law, Muslims donate a fixed portion of their income to community members in need.

Fasting (sawm). During the daylight hours of Ramadan, the ninth month of the Islamic calendar, all healthy adult Muslims are required to abstain from food and drink.

A surah (/ˈsʊərə/; Arabic: سُورَة‎) is a chapter of the Quran. There are 114 surahs in the Quran, each divided into ayahs (verses). The chapters or surahs are of unequal length; the shortest chapter (Al-Kawthar) has only three verses while the longest (Al-Baqara) contains 286 verses.

Why did Britain establish colonies in North America?

Answers

England was looking at the settlement of colonies as a way of fulfilling its desire to sell more goods and resources to other countries than it bought. At the same time, colonies could be markets for England's manufactured goods. England knew that establishing colonies was an expensive and risky business

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Which organization created a shared economy?A. European UnionB. World Trade OrganizationC. North American Free Trade AgreementsD. Association of Southeast Asian Nations 18. Sarah joins an expedition to climb the Everest Mountain. What will Sarah 18experience during the climbing? * if u get hurt and u break ur arm than how do you cure it? (brainliest if correct) im in a good mood please help Which statement best describes the command economy used by the ancient Egyptians?Private businesses created by ancient Egyptians controlled the economy.The pharaoh controlled the economy with help from government workers.The people of ancient Egypt chose the officials who controlled the economy.Advisors appointed by the pharaoh made all the decisions about the economy. Find the distance between A and B . For the past week, Christopher has been studying for his first American History exam. Christopher plans to transfer and eventually become a pre-law major, so his success in this course is very important to him. He has taken a number of steps to make sure he is preparedfor example, he met up with friends from class to review their notes as a group, he added in extra study time instead of attending his usual workouts at the gym, and he made sure to eat healthy meals and avoid drinking too much coffee. When he woke up after a full night's sleep the morning of the test, he reassured himself that he had put in a lot of effort and he would do well. On the day of the test, Christopher attempted to calm his nerves, looked over the entire exam, and made a plan to answer the easiest multiple-choice questions first. When it came time to write the essay portion of the exam, he created a short outline of what he wanted to say, though he acknowledges that he didn't always stick to his main points. He ended up writing more than he anticipated (almost two full pages) because he wanted to share everything he knew about the topic. Christopher admits that he guessed at some of the items on the multiple-choice part of the exam. He felt sure he had done well on the essay, but he scored only 30 out of the 50 possible points. Overall, Christopher received a grade of 63 out of 100 points on the exam.Which of the following might have negatively impacted Christopher's test preparation? In the week leading up to the exam, Christopher skipped his regular workouts, replacing them with extra study sessions. He chose to get a good night's sleep the night before instead of staying up to cram. He joined a study group instead of studying independently. He used positive self-talk, which likely gave him a false sense of security. 2. What could have gone wrong during the exam? He took time at the beginning of class to survey the entire exam. He answered the easy questions first. 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