Biogeochemical Cycles

How have humans impacted the nitrogen cycle?

• Fertilizers

• Livestock farming

• Deforestation

• Mining

What two ways is water put into the atmosphere? (check both)

• evaporation

• condensation

• precipitation

• transpiration

Tags

NGSS.MS-ESS2-4

_______________ found in the soil and roots of plants "fix" nitrogen through the process called nitrogen fixation.

The conversion of nitrogen gas to a form that can be used by plants is called

• decomposition.

• nitrogen balancing.

• denitrification.

• nitrogen fixation.

What is it called when plants give off water vapor as a waste product?

• condensation
• evaporation
• sublimation
• transpiration

When water vapor changes into a liquid. This process is what forms clouds.

• Evaporation

• Condensation

• Precipitation

• Transpiration

Tags

NGSS.MS-ESS2-4

Process by which animals obtain and digest nutrients by consuming plants or other animals.

• Assimilation

• Excretion

• Decomposition

• Respiration

Process that producers use to create glucose from carbon dioxide, water and sunlight.

• Runoff

• Groundwater

• Photosynthesis

• Respiration

Tags

NGSS.MS-LS1-6

Carbon is stored in __________ when an organism dies.

• the atmosphere

• water

• sediment

• glass containers

Tags

NGSS.MS-ESS2-1

NGSS.MS-LS2-3

What is the driving force of the water cycle?

• animals

• weather

• the sun

Tags

NGSS.MS-ESS2-4