Causes and Impacts of Climate Change

Greenhouse effects occur when

• Greenhouse gases pollute the atmosphere

• Greenhouse gases trap heat in the atmosphere

• Greenhouse gases cool the the atmosphere

Gases such as water vapor and carbon dioxide that trap heat near Earth are known as 

• global gases.
• greenhouse gases.
• proxy gases.
• offset gases.

What causes "natural climate change"?

• Volcanic eruptions

• Varations in Solar Outputs

• Both of them

• None of them

A greater number of sunspots leads to increased temperatures on Earth.

• True

• False

Select ALL types of fossil fuels below.

• coal

• oil

• natural gas

What does burning fossil fuels do to the greenhouse effect?

• Decreases it

• Does nothing

• Expands it

• Enhances it

Burning of fossil fuels release the greenhouse gas

• Methane

• Carbon Dioxide

• Carbon Monoxide

• Nitrous Oxide

Deforestation causes an increase in the greenhouse gas, carbon dioxide due to (select all that apply)

• Fewer trees and other plants to absorb carbon dioxide

• Land clearance results in emission of carbon dioxide

• Trees release carbon dioxide when they are being cut down

• Carbon oxidation in the soil due to decay of organic matter

Which greenhouse gas is released when dead leaves and manure decompose in the rice field?

• methane

• carbon dioxide

• carbon monoxide

• nitrous oxide

The use of chemical fertilizers contribute to the following greenhouse gas

• methane

• carbon dioxide

• carbon monoxide

• nitrous oxide