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- 1. Multiple ChoiceHow animals get the nitrogen they needfrom the air they breathefrom the water they drinkfrom the food they eatfrom the Sun
- 2. Multiple ChoiceOrganisms that need nitrogen to surviveonly plantsonly animalsonly bacteriaall living organisms
- 3. Multiple ChoiceOrganism that breaks down dead plants & animals and releases nitrogen back into atmospherebacteriaplantsanimalsproducers
- 4. Multiple ChoiceHow plants get the nitrogen they needfrom the airfrom the soil or water in which they livefrom the Sunfrom broken down rocks
- 5. Multiple Choice
What converts nitrogen gas into a usable form for plants and animals?
bacteria
rain
fungi
car exhaust
- 6. Multiple Choice
The process in which nitrogen circulates and is recycled is called
The nitrogen cycle
The carbon cycle
The water cycle
The phosphorus cycle
- 7. Multiple Choice
Gas that makes up 78% of our atmosphere.
Oxygen
Nitrogen
Hydrogen
Carbon Dioxide
- 8. Multiple Choice
What is the formula for atmospheric nitrogen?
N
N2
NH3
NO3
- 9. Multiple Choice
According to this diagram, plants absorb
nitrates
nitrogen fixing bacteria
animals
decomposers
- 10. Multiple Choice
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
- 11. Multiple Choice
In the nitrogen cycle, what does label A in the diagram represent?
Gas
Clouds
Carbon dioxide in the atmosphere
Nitrogen in the atmosphere
- 12. Multiple Choice
Bacteria fix nitrogen from the atmosphere into a form plants can use.
True
False
- Answer choicesTagsAnswer choicesTags