Greenhouse Effect Review

What gas causes the greenhouse effect?

• Oxygen

• Nitrogen

• Carbon Dioxide

• Rayon

Which of the following are ways that carbon dioxide enters the atmosphere?

• Decaying plant matter

• Aircraft

• It is a naturally occuring gas.

• Volcanic activity

How is carbon dioxide taken out of the atmosphere?

• Absorbed by the ocean.

• Stored in soil and sediment.

• Breathed in by living creatures.

• Burnt up during bushfires.

How does carbon dioxide cause the greenhouse effect?

• It combines with other gases to create clouds.

• It doesn't cause this effect.

• While waiting to be reabsorbed, it forms a barrier that traps in the suns heat.

• It is stored in excessive amounts in plant life.

The more carbon dioxide in the atmosphere the....

• warmer the earth becomes

• cooler the earth becomes

Which of the following contributes most to the issue of global warming?

• The digging up of precious metals.

• The burning of fossil fuels.

• The over fishing of the oceans.

• The deforestation of the Amazon.

Why are they called fossil fuels?

• They are the remainder of decaying plant and animals

• They are very old.

• They are not man made.

• They are costly to mine.

By which percentage has carbon dioxide increased in the atmosphere since 1750?

• 25%

• 46%

• 40%

• 13%

Which of the following is not a result of the greenhouse effect?

• Rising sea levels.

• Damage to eco-systems.

• Extinction of animals on the African continent.

• Melting polar ice caps.

What is the primary source of human-caused carbon dioxide emissions?

• Volcanic eruptions

• Photosynthesis

• Burning fossil fuels

• Ocean evaporation