Biogeochemical Cycles

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

Nitrogen that is not combined with other elements and found in the atmosphere as gas is _____?

Back

free nitrogen

Front

Where are denitrifying bacteria found?

Back

In the soil

Front

Where are nitrogen-fixing bacteria found? Options: In the soil, Root nodules, In dead things, In the atmosphere

Back

Root nodules

Front

What happens during the process of nitrogen-fixation?

Back

Free nitrogen turns into nitrogen compounds

Front

What happens during the process of denitrification?

Back

Nitrogen compounds turn into free nitrogen

Front

What is the only process that removes carbon from the atmosphere? Options: combustion, cellular respiration, photosynthesis, decomposition

Back

photosynthesis

Front

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

Back

carbon