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20 questions
Biogeochemical processes do ALL of the following EXCEPT for:
Regulate nutrients
Influence climate stability
Influence the metabolism of mammals
A biogeochemical cycle explains:
The formation of stars and planets.
why certain animals are known as keystone animals.
the flow of chemical elements between living organisms and the environment.
Nitrogen fixing bacteria
contaminate groundwater
change nitrogen into nitrogen compounds plants can use
are found on the roots of all plants
Humans alter the nitrogen cycle by ALL of the following except:
Adding gases that contribute to acid rain
volcanic activity
contaminating ground water from nitrate ion in inorganic fertilizers
Which is NOT a process of the water cycle?
precipitation
freezing
transpiration
evaporation
Which is the most abundant gas in the atmosphere?
hydrogen
oxygen
helium
nitrogen
Which cycle are fossil fuels (oil, coal, natural gas) part of?
carbon
water
nitrogen
phosphorus
Which cycle DOESN'T have an atmosphere component (part)?
carbon
nitrogen
phosphorus
water
What is the correct formula for nitrogen gas found in the atmosphere?
N2
NO3-
NH4+
NO2-
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