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WorksheetsNutrient Cycles
Total questions: 10
Worksheet time: 8mins
Name
Class
Date
1.
Which elements are in fertilizer?
a)
Nitrogen and Oxygen
b)
Phosphorous and Hydrogen
c)
Nitrogen and Phosphorous
2.
What is one way that people add Nitrogen into the environment?
a)
By littering
b)
By using fertilizer on farms
c)
By burning fossil fuels
3.
What is one way that people add Phosphorus into the environment?
a)
Manure from animals
b)
Driving cars
c)
Cutting down trees (deforestation)
4.
True or False: Plants are primary consumers of carbon dioxide.
a)
True
b)
False
5.
True or False: Humans and animals release carbon dioxide into the air during photosynthesis and respiration.
a)
True
b)
False
6.
True or False: All of the carbon in existence is continually recycled in the carbon cycle.
a)
True
b)
False
7.
Where does the carbon come from that plants use?
a)
Animals
b)
Water
c)
Air
d)
Connecticut
8.
What of the following is NOT a way that people add carbon to the environment?
a)
Burning fossil fuels
b)
Deforestation
c)
Littering
9.
What is one way that people add sulfur into the environment?
a)
Coal-fired power plants
b)
Driving cars
c)
Burning oil in our homes
d)
All of the above
10.
What is a negative effect of sulfur (especially sulfur dioxide) being released into the atmosphere?
a)
It creates acid rain
b)
It causes clouds to not form
c)
It makes the sky yellow
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