CH20 Review

What part of the water cycle does this picture show?

• condensation

• precipitation

• evaporation

• transpiration

What is it called when plants give off water vapor?

• condensation

• respiration

• evaporation

• transpiration

What part of the water cycle does this picture show?

• condensation

• precipitation

• evaporation

• transpiration

Which one of these does not add CO2 to the atmosphere?

• cooking with gas
• planting trees
• burning wood
• riding in a bus

Plants and animals cannot use nitrogen directly from the air.

• True
• False

What converts nitrogen into a useable form for plants and animals?

• bacteria

• fungi

• plants

• animals

Animals obtain the nitrogen they need directly from the

• soil in their habitat
• air they breathe
• plants they eat
• bacteria living within them

When nitrogen gas is turned in to a form that plants and animals can use is called 

• Combustion
• Photosynthesis
• Decomposition
• Nitrogen Fixation

How does carbon in a grass plant get into a lion?

• The lion eats an antelope that ate the grass

• Carbon from grass doesn't end up in a lion.

• The lion absorbs the carbon given off by transpiration

• The lion breathes in carbon given out by the plant

T/F: All of the carbon in existence is continually recycled in the carbon cycle.

• True
• False