Biogeochemical Cycles

Which cycle does not have a part involved in the atmosphere?

• nitrogen cycle

• hydrologic cycle

• phosphorus cycle

• carbon cycle

What is sublimation?

• another word for evaporation

• precipitation

• going from a solid form immediately into a gas form

• going from a solid form into a liquid form

Tags

NGSS.MS-PS1-4

What would be considered the first step in the nitrogen cycle?

• denitrification

• nitrification

• nitrogen fixation

• assimilation

What is nitrification?

• converting ammonia into nitrate

• converting nitrate to N2

• converting N2 into ammonia

Tags

NGSS.MS-LS2-3

What is denitrification?

• converting N2 into ammonia

• converting ammonia into nitrate

• converting nitrate into nitrite

• converting nitrate back into N2 and into the atmosphere

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

What is eutrophication?

• excess in nutrients that causes loss of life in bodies of water

• algae

• the end of an animals life cycle

• another term for organic decomposition

Tags

NGSS.MS-LS2-4

What converts N2 into a usable form?

• bacteria and lightning

• water

• lightning only

• bacteria only

The phosphorus cycle circulates through water, crust, and organisms very....

• quickly

• evenly

• slowly

How does deforestation alter the carbon cycle?

• helps store more carbon

• releases more CO2 into the atmosphere

• converts CO2 into O2

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

More CO2 is released into the atmosphere when we....

• plant more trees

• burn fossil fuels/coal

• when we breathe

Tags

NGSS.MS-ESS3-5