Article Climate Changes on Earth- Amplify Earths Changing Climat

What is one of the reasons that scientists study past climate changes on Earth?

• To predict the weather on a daily basis

• To find out what might happen as Earth's climate changes, both now and in the future

• To understand the behavior of dinosaurs

• To study the composition of the Earth's core

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According to the text, what happens when more energy enters the Earth system than exits?

• The climate cools down

• The global average temperature remains the same

• The climate warms up

• The Earth's rotation speeds up

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What maintains the stability of the Earth's average temperature?

• The amount of energy absorbed by the Earth's surface

• The amount of energy entering and exiting the Earth system being equal

• The study of past climate changes

• The extinction of dinosaurs

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How much warmer was the global average temperature during the Eocene Period compared to today?

• About 45°C warmer

• About 28.8°F warmer

• About 56 million years warmer

• About the same as today

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What is one possible cause of warming in the Eocene Period mentioned in the text?

• A large asteroid hitting Earth

• Increased solar flares

• Rapid industrialization

• Extensive deforestation

What are greenhouse gases, as described in the text?

• Gases that increase the amount of energy coming into the Earth system from the sun

• Gases that prevent sunlight from passing through the Earth's atmosphere

• Gases that stop some outgoing energy from leaving the Earth system

• Gases that are only produced by human activity

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According to the text, what happens when more energy enters the Earth system than leaves it?

• The Earth's temperature decreases

• The Earth's temperature remains constant

• The Earth's temperature increases

• The Earth's orbit around the sun changes

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Which period is referred to in the text where alligators could be found in the Arctic due to warm conditions?

• The Jurassic Period

• The Eocene Period

• The Ice Age

• The Cretaceous Period

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What was a significant change in the deep ocean water temperature during the Eocene Period?

• The deep ocean water temperature remained cold as usual.

• The deep ocean water temperature became warm.

• The deep ocean water temperature became freezing.

• The deep ocean water temperature showed no significant change.

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What is the term used to describe the Earth during the Cryogenian Period?

• Ice Age Earth

• Warm Earth

• Snowball Earth

• Desert Earth

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