Carbon Cycle/Greenhouse Gases Review

Global warming is the

• process of using greenhouse gases to trap heat in the atmosphere

• observed and predicted rise in Earth's average surface temperature

• change in global weather patterns

• melting of the polar ice caps.

During its life cycle, carbon is sometimes stored in a reservoir. Which of the following is NOT an example of a reservoir in the carbon cycle?

• Carbon dioxide in the atmosphere

• Carbon dioxide in the ocean

• Coal

• Limestone

Burning which of the following puts the most Carbon dioxide, CO₂, into the atmosphere?

• Natural gas, CH₄

• Lamp oil, C₁₂H₂₆

• Coal, C

• Gasoline, C₈H₁₈

As carbon moves through the carbon cycle, energy must be

• either used or released

• created or destroyed

• used only

• released only

When hydrocarbons are burned, which of the following are produced? (There is more than one correct answer)

• Methane

• Energy

• Water

• Oxygen

• Carbon Dioxide

Which of the following is NOT a greenhouse gas?

• Carbon dioxide, CO₂

• Methane, CH₄

• Oxygen, O₂

• Nitrous oxide, N₂O

A greenhouse gas has the unique ability to

• move through the atmosphere

• act like the sun

• absorb heat

• stay in one place in the atmosphere

What percentage of carbon dioxide is trapped in Earth's atmosphere?

• 3%

• 22%

• 30%

• 71%

Which environmental conference was held in Japan in the early 2000's?

• Kyoto Protocol

• Environmental Protection Agency, EPA

• Clean Air Act

• Framework Convention on Climate Change

Which is a TRUE statement?

• Plants produce carbon dioxide

• Humans don't depend on plants for the air they need

• Humans depend on oxygen, plants depend on carbon dioxide

• Humans depend on carbon dioxide, plants depend on oxygen