Air is composed of many gases, while water is composed of a pure substance. Which best compares air and water?
A Air is a mixture of two or more components that keep their own identifying properties, while water is composed of compounds that combine to form a mixture.
B Air is a mixture of two or more components that keep their own identifying properties, while water is composed of elements that combine to form a compound.
C Air is a compound of two or more components that keep their own identifying properties, while water is composed of mixtures that combine to form a compound.
D Air is a compound of two or more components that keep their own identifying properties, while water is composed of elements that combine to form a mixture.
Answer: c
Explanation:
C Air is a compound of two or more components that keep their own identifying properties, while water is composed of mixtures that combine to form a compound.
Air is a mixture of two or more components that keep their own identifying properties, while water is composed of elements that combine to form a compound.
What is air?Air is mixture of gases such as oxygen, nitrogen, carbon iv oxide, etc.
What is water?Water is composed of compound of hydrogen and oxygen.
Thus, the best option that compares air and water is "B".
Air is a mixture of two or more components that keep their own identifying properties, while water is composed of elements that combine to form a compound.
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PLEASED ME AND THANKS NO LINKS ALSO NO FILES OK Why do you think we use more digital items then analog?
Answer:
Digital because it is more straightforward and modern
Hope this helps :)
-jp524
(science) who ever gets this right will get a brainlest
Answer:
a and b
Explanation:
i Found the awnser on the CDC website about STDs but most dont show symptoms and does not go away
Why does a skydiver accelerate as she falls to the earth before opening her chute?
A) because she loses mass during her travel
B) because she gets further from the airplane
C) because the force of the earth pulls on her
D) because fewer forces are present to slow her down as she drops
Which sound frequencies are in the audible frequency range of human hearing?
Select all correct answers.
10 Hertz
100 Hertz
1,000 Hertz
10,000 Hertz
Answer:
100 Hertz
1,000 Hertz
10,000 Hertz
Explanation:
Humans can detect frequencies between 20 Hz and 20,000 Hz.
What is one cue you need to follow when shooting a basketball?
*please be somewhat detailed *
thanks!
Answer:
We Use The Cue Start Small End Tail. And We Would Use Cues Like "bend knees Push the hips back" "sit back
Explanation:
So We Like Start Small End Tall" Better Because It Not Only Reminds The Shooter To Explode Into Their Shot By Pushing Their Hips Back.
What do the data tell you about your hypothesis?
State how your hypothesis is either supported OR refuted by the data.
my hypothesis is My hypothesis is a supposition or propose, made on the basis of limited evidence as a starting point for further investigation.
Answer:
If the data supports the hypothesis, then we consider the hypothesis to be verified and true.
Explanation: hope this helps
Answer:
if the data supports the hypothosys then it's most likely correct
Explanation:
The distance between the 2nd compression and the 3rd compression in a longitudinal wave is 200 cm. Find the wavelength of the wave.
I need the answer with working and formula..
Class - 8, Ch:13 - Sound, NCERT, CBSE
Explanation:
[tex]3 \times 200 \div 5[/tex]
Answer:
The wavelength of the wave can be calculated using the equation λ = 2L/n, where L is the distance between two compressions and n is the number of compressions. In this case, the distance between compressions is 200 cm and the number of compressions is 3, so the wavelength is 133.3 cm.
Which describes the temperature for successful sperm production?
quick i need help ;-;
>>>Sperm production in humans and other mammals is dependent on the temperature of the testicles. Sperm is optimally produced when the testicles are 2-4oC below body temperature.
ANSWER:
2-4oC below body temperature.•[ GIVE AND TAKE WITH BRAINLY]•(funfact: im from philipines)
Sound waves are moving across the room from the left toward the opening. What happens to the sound waves as they hit the wall with an opening A Some of the sound waves refract off the wall, while other waves will move through the small opening and then spread out. This is called diffraction. B. Some of the sound waves will reflect off the wall, while others will difract trough the opening and spread out. C Most of the sound waves will reflect ofr the wall, while others will diffract through the opening and spread out. D. Most of the sound waves will reflect off the wall, while others will squeeze through the opening and then reflect again.
Answer: C is right
Explanation: Most of the sound waves are reflected back but waves passing opening will speread to all directions outside because of diffraction
what factors are affected by the petrol crisis ?
Explanation:
Crude Oil Costs. Crude oil pricing is often what influences heating oil prices the most. ...
Supply and Demand. ...
Futures and Commodities Traders. ...
Changes in the Energy Industry. ...
Seasonal Demands. ...
The Weather. ...
Natural Disasters and Politics. ...
Your Neighborhood.
Answer:
1. Crude Oil Costs. Crude oil pricing is often what influences heating oil prices the most. 2. Supply and Demand.3. Futures and Commodities Traders. 4. Changes in the Energy Industry. 5. Seasonal Demands. 6. The Weather. 7. Natural Disasters and Politics.Explanation:
Hopes this helps. Mark as brainlest plz!PLEASE HELP I WILL GIVE BRAINLIEST IF RIGHT!!!!
Answer:
The answer is D
Hope this helped
PLEASE GIVE BRAINLIEST
Explanation:
What is the formula for displacement?
∆ = xf − xi
v = /
v = ∆/
∆ = v ∙ t
Choose all that apply
Hypothesis (5 points)
In this section, please include the if/then statement you developed during your lab activity. This statement reflects your predicted outcome for the experiment.
Skilled Scientist level from Rubric: The hypothesis is reasonable and demonstrates understanding.
Which task and distance do you think you can perform the fastest?
If I (choose one: hop, walk backwards, walk forwards, speed walk) then I can travel the fastest.
Answer:
pretty sure the answer is speed walk, hope this helps
The diagram below shows the Earth (E) in its orbit around the Sun. Based on the Earth's location in the diagram, where will the Earth be in six months?
Near position 1
Near position 2
Near position 3
Near position 4
Hurricane Katrina and hurricane Rita are similar in what way? (I will give brainliest to the correct answer) :)
Answer:
Rita and Katrina both followed similar paths into the Gulf.
Explanation:
Answer:
both same way
Explanation:
1) What is mitosis? Give an example of mitosis occurring.
2) What is meiosis? Give an example of meiosis occurring.
Answer:
a type of cell division that results in two daughter cells, examples of cells that are produced through mitosis include cells in the human body for the skin, blood, and muscles
Why can a hurricane cause so much destruction?
Answer:
When a cyclone continues to be out over the ocean, the winds and huge waves that area unit created by the storm become dangerous for ships and alternative water vessels. ... once the cyclone approaches land it will cause an enormous quantity of injury. Flooding caused by storm surges is one among the foremost dangerous components of a cyclone.
A student rubs a rubber rod with fur, producing a negative charge on the rod. The student then touches the rod to a hollow, neutral metal sphere that stands on an insulating plastic stand. This transfers negative charges from the rod to the sphere: Which statement best predicts what will happen to the charge, and why?
A It will distribute itself evenly over the surface of the sphere, because like charges repel and the sphere is a conductor.
B It will remain at the point of contact between the rod and the sphere, because resistance in the metal prevents the charges from easily moving.
C It will slowly drift to the bottom of the sphere, because the charges rapidly attach to individual atoms, making them slightly heavier than surrounding atoms.
D It will quickly spread to the air around the sphere, because it will seek to occupy as large a volume of neutral matter as possible.
Answer:
B It will remain at the point of contact between the rod and the sphere, because resistance in the metal prevents the charges from easily moving.
Explanation:
The rubber rod will distribute itself evenly over the surface of the sphere, because like charges repel and the sphere is a conductor. So, the correct option is A.
What is Conductor?A conductor is defined as an object or type of material that allows the flow of charge in one or more directions where materials made of metals are common electrical conductors. The property of conductors that allows them to conduct electricity is called conductivity while the flow of electrons in a conductor is called electric current.
In the given example, the rubber rod will distribute itself evenly over the surface of the sphere, because like charges repel and the sphere is a conductor. Some common conductors examples are copper, aluminum, gold, and silver.
Therefore, the correct option is A.
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PPPLLLLSSS HELP ME Identify the following as visible light, radio, ultraviolet, gamma, micro, infrared waves this is for the second part the first part is complete the sentences
How do the laws of evolution explain how convergent evolution occurs?
How does convergent evolution happen?
Convergent evolution is similar to parallel evolution, which occurs when two independent species evolve in the same direction and thus independently acquire similar characteristics; for instance, gliding frogs have evolved in parallel from multiple types of tree frog.
Convergent evolution is when different organisms independently evolve similar traits. For example, sharks and dolphins look relatively similar despite being entirely unrelated. ... Another lineage stayed put in the ocean, undergoing tweaks to become the modern shark.
Answer:
Convergent evolution is when different organisms independently evolve similar traits. For example, sharks and dolphins look relatively similar despite being entirely unrelated. ... Another lineage stayed put in the ocean, undergoing tweaks to become the modern shark.
Explanation:
Which has a greater impact on the kinetic energy of an object the object's mass or the object's speed?
Answer:
mass
Explanation:the larger the mass the higher the kinetic energy
what are the electricity generation that suffer consequences of the petrol crisis?
Answer:
Global warming pollution
When we burn oil, coal, and gas, we don't just meet our energy needs—we drive the current global warming crisis as well. Fossil fuels produce large quantities of carbon dioxide when burned. Carbon emissions trap heat in the atmosphere and lead to climate change
Explanation:
If trophic level 1 in the energy pyramid below has 10,000,000 units of energy available, which trophic level will have 10,000 units of energy available?
it is 100000000 energy
Is it possible for lightning to be used as everyday electricity? Is it safe, and or stable? Can lightning be multiplied?
Answer ASAP please. 20 points are to be given.
Answer
What the guy above said
Explanation:
The drawing shows a student holding two negatively charged balloons. What is most likely to occur if the student brings the balloons closer to each other?
A The magnitude of the electrostatic force between the balloons will decrease, and they will attract each other.
B The magnitude of the electrostatic force between the balloons will increase, and they will attract each other.
C The magnitude of the electrostatic force between the balloons will decrease, and they will repel each other.
D The magnitude of the electrostatic force between the balloons will increase, and they will repel each other.
Answer:
D
Explanation:
"Like charges repel each other; unlike charges attract. Thus, two negative charges repel one another, while a positive charge attracts a negative charge. The attraction or repulsion acts along the line between the two charges."
Source:
https://www.britannica.com/science/Coulombs-law
If the student brings two negatively charged balloons closer to each other magnitude of the electrostatic force increases and they will repel each other. The Correct option is D.
What is Electrostatic force?Electrostatic force is a force of attraction or repulsion between two unlike or like charges respectively. when like charges come closer to each other, they gets repel by one another and it gets attracted for unlike charges. Force of attraction or repulsion between two point charges are given by coulomb's law, which states that " The force of attraction or repulsion between two charges are directly proportional to product of magnitude of two charges and inversely proportional to square of distance between them.
Charged bullions has charges accumulated on the surface. when two negative charged balloons comes closer they gets repelled each other.
Hence option D is correct
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Help. Please explain to me how you got the answer.
whats a good string length for a parachute
Answer: Hope This Helps!
Explanation:
The length of the string should be equal to the radius of the desired circle. Attaching the suspension lines: Creator of parachutes Use 4 suspension lines for each parachute. And Attatch the suspension lines onto the canopy.
Derek owns a farm that produces soybeans, avocados, and pecans. What is the word used to describe these items?
Select one:
a.
crops
b.
livestock
c.
dairy
d.
non-perishables
Answer:
crops
Explanation:
dairy are milk products and those aren’t
live stock is domesticated farm animals raised to produce resources
non-perishables are canned food and dried food. they can last a long time. they don’t need to be refrigerated or
Which of the following does not describe an ecosystem in a state of dynamic equilibrium?
A An ecosystem that is constantly changing
B An equilibrium that becomes unbalanced.
C An ecosystem that can return to a balanced state.
D An ecosystem that can respond to disruptions.
An ecosystem that is constantly changing is not in a state of dynamic equilibrium.
A state of dynamic equilibrium is a state in which an ecosystem is relatively balanced. The ecosystem may be com unbalanced by by natural changes but returns to its original state. An ecosystem in a state of dynamic equilibrium remains unchanged for a long time.
Hence, an ecosystem that is consistently changing is not in a state of dynamic equilibrium because dynamic equilibrium has to do with relative stability of an ecosystem.
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