Why have ice ages come and gone?

Answers

Answer 1

Answer:

"When less sunlight reaches the northern latitudes, temperatures drop and more water freezes into ice, starting an ice age. When more sunlight reaches the northern latitudes, temperatures rise, ice sheets melt, and the ice age ends."

Explanation:

Answer 2

Answer:

As temperatures decrease, less sunlight reaches the water. This causes the ice to freeze, when this happens in mass it causes an ice age. Later, temperatures rise and the ice melts.

Explanation:

Temperatures plummet as less sunlight reaches northern latitudes, and more water freezes into ice, triggering an ice age. Temperatures rise, ice sheets melt, and the ice age ends as more sunshine reaches northern latitudes.


Related Questions

A student made the table below to compare high air pressure and low air pressure. Which correction is required to make the table correct?

a table comparing air pressure. High pressure has more air above pressing down and results in stormy weather. Low pressure has less air above pressing down and results in cloudy weather.

High pressure results in clear skies.
High pressure results in less air below pressing up.
Low pressure results in more air above pressing down.
Low pressure results in sunny weather.

Answers

Answer:

high pressure results in clear skies

Explanation:

High pressure results in clear skies.

HELP ASAP!!

Which statement accurately describes in terms of energy what happens when water turns to steam?
The water releases energy which causes chemical bonds to break, changing water to steam.
The water releases energy which causes the water molecules to have less kinetic and potential energy, changing their configuration from liquid to gas.
The water absorbs energy which causes the water molecules to have more kinetic and potential energy, changing their configuration from a liquid to a gas.
The water absorbs energy which causes chemical bonds to break, changing water to steam.

Answers

Answer:

B

Explanation:

I did this b4 ‍♀️

B because i did this before

What type of cells make up all parts of the human body?
Select one:

Prokaryotic cells

Eukaryotic cells

Archaea cells

Circular cells

Answers

Answer:

Eukaryotic Cells

Explanation:

Eukaryotic cells have organelles, membrane-bound structures that perform different functions in the cell, and prokaryotic cells do not. Some typical eukaryotic organelles include the nucleus, mitochondria, ribosomes, Golgi apparatus, and chloroplasts.

The answer is number two good luck

Somebody, please help me answer this question, I don't understand it and its due tomorrow.

Answers

Answer:

A

Explanation:

The contents of the left side have moved down, this is able to be told because the "a" used to be in the same position all the way across. The left side moved down, and the right side moved up to create what is seen on the chart.

the answer is a! ( i know it because i did it and got it right)

What temperature are the objects in space that x-rays come from?



a. millions of degrees Celsius


b. billions of degrees Celsius


c. hundreds of degrees Celsius


d. thousands of degrees Celsius

Answers

Millions of degrees Celsius

Nirates and phosphates are important chemicals to living things. Explain why these chemicals can also be pollutants.

Answers

Answer:

Nitrogen and phosphorus are essential elements for all living organisms. They are used in DNA and chemical processes in the body. Most nitrogen is found in the air and most phosphorus is bound up in rocks and sediments, making them unavailable to organisms. And they are pollutants cuz nitrogen and phosphorus support the growth of algae and aquatic plants, which provide food and habitat for fish, shellfish, and smaller organisms that live in water. But when too much nitrogen and phosphorus enter the environment - usually from a wide range of human activities - the air and water can become polluted

Explanation:

if my answer help, I hope you get better <3

Explanation:

When nitrate and phosphate ions concentrations in shallow waterbodies are in excess, there is overgrowth of water plants leading to the formation of algal bloom. This causes a high consumption of dissolved oxygen in the water. ... The dead plants and animals decay creating deterioration of water quality.

An index fossil represents a species that lived during
A.
a long interval of Earth's history.
B.
Earth's entire history.
C.
a short interval of Earth's history.
D.
several intervals of Earth's history.
which one is it?

Answers

Answer:

C

Explanation:

an index fossil is a fossil from a very short-lived, geographically widespread species known to exist during a specific interval of geological time.

I think the answer is C.

Image shows a lake, a factory, a cloud in the sky, a cow, dead organisms, a tree, and the sun. An arrow from the sun to the tree is labeled A. An arrow from the sky to the tree is labeled B. The sky is labeled C above the cloud. The letter D is in the air and an arrow points from it down to dead organisms. An arrow points from dead organisms to the ground labeled E. An arrow points from the cow into to the sky labeled F. An arrow points from the factory to the sky labeled G. An arrow from the sky to the lake is labeled H above the lake.
Using the diagram above, match the description to the corresponding location in the carbon cycle model. Provide the letter only.

Carbon dioxide is converted to sugar used for food.
Carbon trapped in fossil fuels is converted to carbon dioxide.
Organic carbon is converted to fossil fuels.
Carbon dioxide is converted to carbonates.
Sugar is broken down and converted to carbon dioxide.
Location ________
Location ________
Location ________
Location ________
Location ________

Part Two


Images shows a lake labeled carbonates in water, a cow labeled animal respiration, a tree labeled photosynthesis, a factory labeled factory emissions, the sun labeled sunlight, a cloud labeled carbon dioxide in atmosphere, another tree labeled plant respiration, an arrow from organic carbon to dead organism, and fossils and fossil fuels. Arrows are labeled as follows: A from the sunlight to photosynthesis, B from carbon dioxide in atmosphere to photosynthesis, C from factory emissions to carbon dioxide in atmosphere, D from carbon dioxide in atmosphere to carbonates in water, E from dead organisms to fossils and fossil fuels, and F from plant respiration to the sky.


Using the diagram above, answer the following questions:

True or False. The arrow labeled C represents a transfer of chemical energy to mechanical energy. Explain why this is true or false.
True or False. The arrow labeled A represents a transfer of solar energy to chemical energy. Explain why this is true or false.
Which arrow or arrows represent a release of carbon dioxide? What process is occurring at the arrow(s) you selected?
Which arrow or arrows indicate a process that cycles carbon from living or nonliving organisms? Describe the process or processes you selected.
Which arrow or arrows represent reactions that demonstrate a conservation of mass and energy? Explain your answer.

Answers

Answer:

A - 1. Carbon dioxide is converted to sugar used for food (this is process of phosynthesis).

G - 2. Carbon trapped in fossil fuels is converted to carbon dioxide (this is combustion of fuel).

E - 3. Organic carbon is converted to fossil fuels.

H - 4. Carbon dioxide is converted to carbonates.

F - 5. Sugar is broken down and converted to carbon dioxide (this is breathing).

in a neap tide, the moon's effect on blank

Answers

Answer:

Neap tides occur during the first and third quarter moon, when the moon appears "half full"

In Kevin’s favorite comic book, the superhero has special powers. In one adventure, the superhero must stop an evil villain who threatens to destroy the city with a powerful energy blast.

As he confronts the villain, he makes the following claims:
1: “I can create an energy force field to save the city.”
2: “I can destroy the energy before it destroys the city.”
3: “I can convert all the energy before it can do any harm to the city.”
4: “I can absorb all the energy and make it go away.”

If the superhero must obey the law of conservation of energy, which of the above can he actually do?

a. 1

b. 2

c. 3

d. 4

Answers

Answer:

3

Explanation:

The law of conservation of energy states that energy cannot just be created, so answer one is out. Energy also cannot be simply destroyed, so answer to is out as well. From here it gets tricky, since both answers make some sense under these rules. However, absorbed is bassically the same as destroying it leaving only answer three. Answer three does obey these laws, as energy can be converted.

Which of the following are true when milk changes into curd?
(i) Its state is changed from liquid to semi-solid.
(ii) It changes colour.
(iii) It changes taste.
(iv) The change cannot be reversed.

Choose the correct option.
a) (i) and (ii)
b) (ii) and (iii)
c) (i), (iii) and (iv)
d) (i) to (iv)

Answers

Answer: If you still need it, i can answer.

the answer is C.

Milk doesn't really change color.

hope this helps. have a nice day.

HELP ASAP BRAINLIEST INCLUDE

Answers

Answer:

[D] Changes occur in organisms over long period of time

[RevyBreeze]

the answer my friend, is d

I have no idea what this is about, I keep reading it over and other again, but I still don't understand! Help?

Answers

Answer:

A

Explanation:

So, here's a slightly simpler example:
If i had a jar, and i added sand, then rocks on top of the sand, and finally dirt on top of everything, what would the layers of the jar look like? (Assuming that i hadn't shaken the jar)
Well, the answer would be: The bottom of the jar would be a sand, the middle would be rocks, and on top would be dirt.

This question is pretty much the same question, just with fancier words and 4 things instead of 3



If the stars come first, then you find them at the very bottom of the jar. if the squares come second, then they are above the stars, but below the triangles, which come third. The circles come last, so you find them last. Thus the order is: stars, squares, triangles, and circles, from bottom to top, so it's A

Note: the jar represents the earth, and it too, may be shaken up in some places. This means that sometimes, if two organisms lived very close together in time (like the star and the square), and some event happened, you may occasionally see the square below the star. However, this question says that they weren't disturbed.

Order the colors of the visible light spectrum from longest wavelength to shortest wavelength.



green

yellow

orange

red

violet

indigo

blue

Answers

Answer:

red, orange, yellow, green, blue, indigo and violet.

yellow because it’s not actually a color

can someone answer these chemistry questionss​

Answers

you are able to search it up and this looks more like math then chemistry

The diagrams show two different ways that water, methane, and acetic acid can be modeled. Look closely at each type of model. Explain what each type of model shows best.


HELP ME PLZ!


T^T

Answers

Answer:

they all show the chemical makeup

Explanation:

Compare and contrast the Andes Mountains and the Rocky Mountains. How are they formed? What consumers and producers are in each? First reasonable answer gets brainly

Answers

the are formed by different land

How do telescopes help astronomers learn more about the universe?



a. Telescopes gather more light than the n a k e d eye can see.


b. Telescopes gather less light than the n a k e d eye can see.


c. Telescopes change the color of the light that we see.


d. Telescopes apply a filter to the light that we see.

Answers

Answer:

A. Telescopes gather more light than the n a k e d eye can see

Explanation:

Telescopes allow us to see things from far away by gathering more light

It’s 1,000,000 percent a because we can’t see jack with our backed eye and the telescope let h see more

Select the items below that produce gamma rays in space.



pulsars


supernova explosions


lightning


regions around black holes


neutron stars


nuclear explosions


radioactive decay

Answers

1.Pulsars
2.Supernova Explosions
3.Pulsars

Answer:

Neutron stars

Radioactive decay

The graph below shows the mechanical energy of a car on a roller coaster at four different locations.



Which of the following is a supported by evidence from the graph?

Potential energy increases but kinetic energy stays the same during a roller coaster ride.

Kinetic energy and potential energy change, but energy is neither created nor destroyed during a roller coaster ride.

Potential energy is destroyed during a roller coaster ride.

Kinetic energy is created during a roller coaster ride.

Answers

A)Potential energy increases but kinetic energy stays the same during a roller coaster ride.

Explanation:

Potential energy is stored energy that depends upon the relative position of various parts of a system.

Kinetic energy is a form of energy that an object or a particle has by reason of its motion

it goes back and fourth

The answer is A. Good luck

Use diagram #2 and try to explain what you think is happening during each of the following process: Fixation, Denitrification, nitrification, leaching, atmospheric nitrogen
Diagram included below. Please hurry and answer THANK YOU. I dont know the subject sorry

Answers

Answer: For each of them or just one?

Explanation:

The temperature of a plastic cup is 70ºF. It is filled with water that is 40ºF. Which of the following describes how thermal energy is transferred?

a. Thermal energy is transferred from the cup to the water until they are both at 45ºF.

b. Thermal energy is transferred from the cup to the water until the cup is at 60ºF and the water is at 50ºF.

c. Thermal energy is transferred from the water to the cup until they are both at 45ºF.

d. No thermal energy is transferred between the cup and the water, so the cup will stay at 70ºF and the water will stay at 40ºF.

Answers

Option A is the right answer

I have asked this already!!!!!

Answers

Answer:

01) Cu tting hair is a physical change. reason-1

02) Cooking can be either one, but I would choose chemical reason-3

03) Ice cream melting is a physical change reason-2

Explanation:

When telescopes are looking at objects that are really far away, they are actually looking back in time.


True
False

Answers

Answer:

true

Explanation:

looking i the sky you can see stars that are billion years old

Time can be traversed via a telescope. Looking out into space is like looking back in time, according to NASA experts. Light needs time to traverse vast distances of space and come to Earth. Here the given statement is true.

The "deep" in Hubble Deep Field denotes the telescope's capacity to see some of these far-off, faint objects. It's like observing faraway space objects by going back in time. Even though light travels at an astounding rate, it still needs some time to cross the vastness of space.

Light travels slowly, so we don't see things as they are now, but as they were when they released the light that reached us from all over the galaxy.

Thus the given statement is true.

To know more about telescopes, visit;

https://brainly.com/question/30246219

#SPJ4

I need help with this one

Answers

Answer:

Claim 1 is the correct answer.

the answer is claim 1, just find evidence for it x :)

OK I NEED HELP ON THESE BUT CAN U PLEASE LIKE EXPLAIN Y

Answers

Answer:

For the 1st question, it is the pickup truck.

Explanation:

Even though they are the same speed, the pickup truck is curving. So, I think it changes velocity.

Answer:

For the 2nd question, it is B.

Explanation:

Accelaration is either slowing down, speeding up, or changing direction. However, B is in a straight line. So, it must be B.

What type of microscope has to be used for

Nucleus of a plant cell

Surface of a dust particle

Feeding behavior of a microorganism

Structure of a single white blood cell

Answers

Answer:

Nucleus of a plant cell = light microscopes

surface of a dust particle = scanning electron microscope.

Feeding behavior of a microorganism = electron microscopy.

Structure of a single white blood cell = typical optical microscope

If a scientist knows the relative age of a fossil, he can also know
A.
the type of climate from which it came.
B.
the relative age of the rock where it was found.
C.
how it became extinct.
D.
how long the organism was alive.

Answers

C I think is the right answer

A student performs an exothermic reaction in a beaker and measures the temperature. If the thermometer initially reads 35 degrees Celsius, what is a possible reading of the thermometer after the reaction? A. 35 degrees Celsius B. 0 degrees Celsius C. 45 degrees Celsius D. 25 degrees Celsius

Answers

Answer:

C

Explanation:

Exothermic means that heat is released from the reaction

11 The diagram below shows two important parts of the human digestive system.

Answers

Answer:

A c B

Explanation:

i would love to do ya homework

Other Questions
What the inverse of this question how can i solve it formula y= mx + b i really need some help on this math problem?can you help me Complete the sentences with the verb conjugated in the preterite. 2022 - An 18 year old hiker has been bitten by a rattle snake. Vital Signs are: BP 140/90, P 130, R 24. You should: Complete the sentences with verbs sam knows that 1 inch is about 2.54 centimeters. about how many centimers is 3 inches Which trait is DEFINITELY caused by genetics? weightheighttanned skinthe hardworkThank you Fill in the blanks with the correct conjugation of the verb.1. Ellos tarde el sbado y domino.2. Carlos y yo hasta las ocho.3. Las chicas en el autobs.4. Juanita bien.5. El director en su casa.6. T no en clase.7. Yo en mi cama.8. Guillermo en la playa.9. La familia en el apartamento.10. Los jugadores bien porque tiene sueo.11. Marco y Marta_ tarde los domingos.12. Elena _ durante la siesta.13. Ustedes en el condo.14. Mis amigos mucho durante las vacaciones.15. Ella y yo _ en la sof. What is the correct answer NEED ANSWER ASAP Which pair of angles are alternate exterior angles of parallel lines v and w?b and da and ba and da and c In what ways does macbeth attempt to control the future and to bury the past? The equation and table shows were two boys pay for gym fees compare the rate of change and initial value for each function Alfredo month 0 1 2 3 Alex C=25+10m, where Cost 20 30 40 50 C= cost in dollars and M= number of months. Which pair of elements are nonmetals and gases at room temperature and normal atmospheric pressure?. Differences between a patient information leaflet and package insert An unknown number is twelve less thanfour write a program to input a number and print the largest and smallest number using c++.please help fast Plzzzz help asapWhich ideas did president Andrew Jackson support??Opening the second bank of the United States.Passing the South Carolina act of nullificationEnacting the Tariff of 1828Banning enslavement in the United States Why do you think it is important to stay calm if you are caught in an avalanche ? Please Help! I have a math test and can't understand this one!?