ES Review: Biogeochemical cycles

Front

What is the term for when nutrients are turned into forms usable by most plants and animals?

Back

fixation

Front

What is it called when water changes from liquid to gas?

Back

evaporation

Front

How is water returned to earth?

Back

precipitation

Front

What do plants do with carbon dioxide (CO2)?

Back

Plants use CO2 to make carbohydrates.

Front

Which is NOT a process of the water cycle? Options: precipitation, freezing, transpiration, evaporation

Back

freezing

Front

The process of plants losing water through their leaves is called ____.

Back

transpiration

Front

What is the most abundant gas in the atmosphere? Options: hydrogen, oxygen, helium, nitrogen

Back

nitrogen

Front

Where are denitrifying bacteria found?

Back

In the soil

Front

Where are nitrogen-fixing bacteria found?

Back

Root nodules

Front

Which cycle are fossil fuels (oil, coal, natural gas) part of? Options: carbon, water, nitrogen, phosphorus

Back

carbon