Earth's Changing Climate End of Unit
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| When carbon dioxide in the atmosphere increases, the amount of energy absorbed by Earth’s surface should | show 🗑
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| Scientists found evidence of a time period 3 billion years ago when less energy entered the Earth system than exited. What is one change to the atmosphere that could have caused this, and how did it change the amount of energy in the Earth system? | show 🗑
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| The Karoo Ice Age started about 360 million years ago and lasted for about 40 million years. During this time, less energy entered the Earth system than exited. What is one change to the atmosphere that could have caused this? | show 🗑
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| show | Sulfur dioxide redirects (bounces) some incoming energy from the sun back toward outer space.
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| show | increased
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| Scientists are using a computer simulation, they notice that more energy entered the Earth system than exited. How might the amount of carbon dioxide have changed to cause this, and how would this have changed the energy in the Earth system? | show 🗑
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| Scientists study tree rings to learn more about Earth’s past climate. They found a time period when the amount of carbon dioxide in the atmosphere decreased. What happened to energy in the Earth system when carbon dioxide in the atmosphere decreased? | show 🗑
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| What is one reason that carbon dioxide is increasing in the atmosphere today? | show 🗑
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| show | Both samples are made of a mix of several different kinds of gases.
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| Climate researchers in Greenland found an ice core sample that shows there was a period when carbon dioxide in the atmosphere decreased. What happened to the amount of energy absorbed by Earth’s surface during this time? | show 🗑
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| Some bacteria produce methane during digestion. If the amount of these bacteria decreased a lot, the amount of methane in the atmosphere would decrease. What would happen to energy in the Earth system if this happened? | show 🗑
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| About 360 to 299 million years ago, swampland on Earth increased, which may have led to a large increase in the amount of methane in Earth’s atmosphere. What happened to energy in the Earth system when the amount of methane in the atmosphere increased? | show 🗑
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| When making an argument about how climate change is affecting the ice cover on Earth, what would be the least effective type of evidence to support your argument? | show 🗑
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| What can humans do to help keep carbon dioxide and methane in Earth’s atmosphere from increasing? | show 🗑
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| show | decreased
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| In the last 5 million years of the Permian period in Earth’s history, carbon dioxide in the atmosphere increased. How did energy in the Earth system change during this time? | show 🗑
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| show | Methane increased, leading to more energy in the Earth system because more exiting energy was redirected (bounced) back toward Earth.
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| show | The atmosphere is made of a mix of different kinds of gases.
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| show | false
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| There is a trend of increasing temperatures on Earth since about what year? | show 🗑
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| show | true
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| show | true
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| Increased carbon dioxide in the atmosphere will cause the earth's temperature to cool. True or False? | show 🗑
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| show | true
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| Fluctuations can occur within a trend. True or False? | show 🗑
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| Which occurs over a long period of time? Fluctuation or Trend? | show 🗑
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| show | cooler (think open oven door)
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| show | warmer (think closed oven door)
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| There is nothing that humans can do to change the carbon dioxide and methane. True or False? | show 🗑
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| show | true
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