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How much oxygen is contained in the atmosphere? a. 20% b. 21% c. 22% d. 23% What is slowed when water is a limiting factor in an environment? a. amount of evaporation b. population growth c. the types
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How much oxygen is contained in the atmosphere?

a. 20%
b. 21%
c. 22%
d. 23%

What is slowed when water is a limiting factor in an environment?
a. amount of evaporation
b. population growth
c. the types of rocks

User Cmac
by
8.1k points

1 Answer

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Oxygen makes up 20% of the atmosphere while nitrogen makes up 78%. The other two percent is made up of other gases. Population growth would slow. Organisms need water to survive and if there is a limited amount of water, populations will decline. 
User Ritesh Choudhary
by
8.1k points
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