2021 Unit 6 Human Activity on Ecosystem

What are greenhouse gases?

• Gases that keep heat trapped in the atmosphere.

• Gases that are in the presence of plants, which is why they are called greenhouse gases.

• Gases such as liquid water and glucose.

• Gases that are emitted (released) from ocean water.

What is the purpose of the greenhouse effect?

• Earth's energy can bounce off the surface of Earth

• The energy from the sun can go back into space since it is too hot for Earth.

• Keeps some of the heat and energy from the sun trapped within the atmosphere of Earth.

• Allows Earth to rotate around the sun.

Throughout the years, there is evidence of a changing climate because... (SELECT ALL THAT APPLY)

• Glaciers and sea ice have melted.

• There is an increase in overall global temperature.

• Sea levels have risen contributing to the loss of land.

• There is less CO₂ present in the atmosphere now compared to 10 years ago.

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NGSS.MS-ESS3-5

The Anthropocene Epoch is a geologic period of time when Earth is impacted by ____________________.

• ice ages

• human activity

• thermal expansion

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NGSS.MS-ESS3-4

When carbon dioxide levels in the atmosphere increase, overall global temperature will...

• Increase

• Decrease

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NGSS.MS-ESS3-5

When there is an increase in ocean temperature, water molecules will __________________.

• Expand

• Shrink

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NGSS.MS-PS1-4

Which of these are reasons why there is an increase in sea levels? Check all that apply.

• Melting of ice caps and glaciers add water to the oceans.

• The presence of greenhouse gases in the ocean cause sea levels to rise.

• In warmer temperatures, thermal expansion of water molecules occurs.

• When temperatures increase, carbon dioxide levels in the atmosphere decrease.

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NGSS.HS-ESS3-1

NGSS.HS-ESS3-5

The rise in sea levels will most likely ______________ the rate of erosion along coastlines and beaches. These rising sea levels will also likely ____________________ flooding or the chances of hurricanes.

• Increase; increase

• Increase; decrease

• Decrease; decrease

• Decrease; increase

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NGSS.HS-ESS3-1

NGSS.HS-ESS3-5

NGSS.HS-ESS3-6

____________________ is the process by which the surface of Earth is worn away by natural processes caused by the movement of wind and water.

• Climate change

• Erosion

• Thermal expansion

• Ocean acidification

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NGSS.MS-ESS2-2

What will happen if there is a high concentration of carbon dioxide in the ocean?

• Carbon dioxide emissions

• Ocean acidification

• Erosion

• Thermal expansion

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NGSS.HS-ESS2-6