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WorksheetsAtmosphere, Oxygen- Carbon & Nitrogen Cycles
Total questions: 17
Worksheet time: 9mins
All of the carbon in existence is continually recycled in the carbon cycle.
Which describes the relationship between plants and animals in the carbon cycle?
Plants produce and release oxygen that animals need
Plants produce and release carbon dioxide that animals need
Animals produce and release oxygen that plants need
Animals produce oxygen that plants turn into carbon dioxide
When the water cools down in the atmosphere, the water goes through _______________ and becomes clouds.
Evaporation
Transpiration
Condensation
Precipitation
Which of the following are forms of precipitation? (Select all correct answers)
Rain
Sleet
Snow
Hail
What type of organism “fixes” the nitrogen for use by plants?
Humans
Plants
Bacteria
Aliens
Humans and other animals breathe in __________ and release carbon dioxide
Carbon dioxide
Carbon Monoxide
Dihydrogen oxide
Oxygen
Plants absorb ________________________ and release oxygen
Carbon dioxide
Carbon monoxide
Vitamin X
Oxygen
How much of our atmosphere is made up of nitrogen gas?
25%
55%
78%
95%
We can breathe in nitrogen from the air and use it just like we use oxygen.
True
False
The nitrogen cycle includes ___________. (Pick 3)
the atmosphere
the sun
the animals
the soil
Where does nitrogen goes once it is in the soil?
stems of plants
leaves of plants
roots of plants
flowers of plants
Water in oceans, lakes, rivers, and other reservoirs changes from a liquid to a gas through _____________.
Evaporation
Transpiration
Condensation
Precipitation
