WorksheetsNitrogen Cycle
Total questions: 10
Worksheet time: 5mins
Which definition best describes the Nitrogen Cycle?
Converts nitrogen into a mineral
How nitrogen circulates through the ecosystem
How nitrogen is made into fertilizer
How plants take up nitrogen
Organisms that need nitrogen to survive.
only plants
only animals
only bacteria
all living things
Gas that makes up 78% of our atmosphere.
Oxygen
Nitrogen
Hydrogen
Carbon Dioxide
Plants and animals cannot use nitrogen directly from the air.
True
False
The process that allows organisms to use nitrogen
assimilation
denitrification
fixation
ammonification
A correct path that nitrogen could take would be
air -> animals -> plants -> bacteria
animals -> air -> bacteria -> plants
bacteria -> air -> plants -> animals
air -> bacteria -> plants -> animals
Majority of nitrogen fixation occurs by
Biological nitrogen fixing organisms
Lightning
volcanic eruptions
Haber–Bosch process
