Explore Biogeochemical Cycles

Front

The law of conservation of ______states that matter is not created or destroyed.

Back

mass

Front

The diagram is a representation of the ______and _________cycles.

Back

carbon and oxygen

Front

The exchange of matter through the biosphere is called the ______ cycle.

Back

biogeochemical

Front

Nitrogen gas returns to the atmosphere through.

Back

denitrification

Front

_____is a limiting factor for plants because it must be converted from a gas to a usable form by bacteria.

Back

nitrogen

Front

Denitrification is the conversion of fixed nitrate compounds into ____gas.

Back

nitrogen

Front

What is the correct order for the stages of the short-term phosphorus cycle, starting with phosphorus in the soil?

Back

a. phosphorus enters producers → c. phosphorus enters consumers → b. decomposers return the phosphorus to the soil and water

Front

______ fixation occurs when the gaseous form is converted into a form that is usable by plants.

Back

Nitrogen

Front

While this element important for life is found in the atmosphere, most organisms cannot directly use its gaseous form.

Back

Nitrogen

Front

Denitrifying bacteria return _______ gas back to the atmosphere.

Back

nitrogen