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Cooper 1/16/2020
By Erica Cooper
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Last updated about 5 years ago
3 questions
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Question 1
1.
What does the word terrestrial mean?
relating to space
relating to water
relating to earth
relating to air
Question 2
2.
What element is essential for cellular respiration for all aerobic organisms?
hydrogen
oxygen
nitrogen
carbon
Question 3
3.
Plants maintains the ozone layer that helps protect Earth’s life from what dangerous matter?
carbon dioxide
biogeochemical processes
oxygen
UV rays