Biogeochemical Cycles

Which process takes Carbon Dioxide from the air and converts it into a form of carbon used by living things?

• Precipitation
• Photosynthesis
• Respiration
• Bioremediation

Tags

NGSS.MS-LS1-6

Gases such as carbon dioxide, methane and water vapor trap heat in the Earth's atmosphere causing global warming

• Global warming gases
• Hot house gases
• Greenhouse gases
• Thermal pollution

The elements carbon, oxygen, hydrogen and nitrogen combined make up about 96% of our bodies (carbon is about 18%).  Carbon is necessary for life because it is a(n)

• uncommon element in all living things.
• element found only in the atmosphere.
• excellent bond former.
• is found mostly in dead things.

Respiration is the process by which ____________ is consumed and _______________ is produced.

• carbon, oxygen
• oxygen, carbon dioxide
• H20, oxygen
• carbon, H2O

A particular golf course is using large amounts of nitrogen fertilizer. What process could move this nitrogen into a local stream?

• volatilization
• nitrogen fixation
• runoff
• ammonification

Tags

NGSS.MS-LS2-3

Growing legumes such as alfalfa, peas or soy beans increases the process of 

• denitrification
• nitrogen fixation
• ammonification
• ammonium oxidation

Tags

NGSS.MS-LS2-3

Which of the following describes the role of nitrogen-fixing bacteria in the nitrogen cycle? Nitrogen-fixing bacteria convert

• nitrates intro nitrogen gas
• ammonia into proteins
• nitrogen gas into ammonia
• proteins into nitrates

Organisms use nitrogen to form

• carbohydrates and lipids
• proteins and lipids
• lipids and nucleic acids
• proteins and nucleic acids

The nitrogen cycle is a biogeochemical cycle because it moves ?

• only between living things (biosphere)
• only in the soil (geosphere)
• between the 4 different spheres 
• only in the air (atmosphere)

Tags

NGSS.MS-LS2-3

NGSS.MS-ESS2-1

This a picture of the

• nitrogen cycle
• carbon cycle
• water cycle
• plant cycle