Question 1

What is/are vital function(s) of soil? (Check all that apply.)

Question options:

Regulate water flow through hydrologic cycle

Transport nutrients into streams and lakes

Facilitate breakdown of pollutants

Provide support for plants and structures

Indefinitely store nutrients

Question 2

Which of the following characterizes a symbiotic relationship? (Check all that apply.)

Question options:

a close interrelationship where both species benefit

a close interrelationship where one species benefits, and the other is not affected

a close interrelationship where one species benefits, and the other is adversely affected

an intimate relationship between members of two or more species

a relationship where two species partition the available resources

Question 3

All forms of renewable energy come from one of the following three sources: (Check the three sources that apply.)

pur-new-sol

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