Carbon and Nitrogen Cycle Review

What happens when organisms die and decompose?

• Their bodies are lifted up

• Their nitrogen returns to the soil

• they keep their nitrogen

• They stay on earth forever

Tags

NGSS.MS-LS2-3

_____ is the conversion of organic nitrogen into ammonia

• Nitrogen Fixation

• Ammonification

• Denitrification

• Assimilation

Tags

NGSS.MS-LS2-3

Nitrification happens in the ______

• Air 

• Soil 

• Ground Water 

• Plants 

Tags

NGSS.MS-LS2-4

What happens when too much Nitrogen finds its way to the ocean?

• Algae Bloom

• Acid Precipitation

• Nitrogen Fixation

• Decomposition

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

NGSS.MS-LS2-1

The process that convert nitrates (NO3-) back to nitrogen gas (N2) there by replenishing N2 in the atmosphere is called

• Nitrogen fixation

• Deamination

• Denitrification

• Nitrification

Tags

NGSS.MS-LS2-3

How do humans affect the carbon cycle

• Inhaling oxygen

• Respiration

• Using CFCs

• Wearing sunscreen

Tags

NGSS.MS-ESS3-4

How do animals get the nitrogen they need?

• From the air they breathe

• From the water they drink

• From the food they eat

• From the sun

Tags

NGSS.MS-LS2-3

What is the primary role of decomposers in the nitrogen cycle?

• Breaking down dead organisms to release nitrogen

• Fixing atmospheric nitrogen into the soil

• Converting ammonia into nitrates

• Absorbing nitrogen from the atmosphere

Which process in the carbon cycle involves the conversion of carbon dioxide into organic compounds by plants?

• Respiration

• Photosynthesis

• Decomposition

• Combustion

Tags

NGSS.MS-LS1-6

In the nitrogen cycle, which bacteria are responsible for converting nitrates back into nitrogen gas?

• Nitrogen-fixing bacteria

• Nitrifying bacteria

• Denitrifying bacteria

• Decomposing bacteria