write the overall reaction and the rate expressions that correspond to the following reaction mechanism. step 1: a + b ⇋ c + d (fast, equilibrium) step 2: c + e ⟶ f (slow)

What percentage of the earth's water is available for use by living things?

Technological solutions have good bad effects. what is one bad effect of spraying a chemical pesticide on crops

In this food web, which group would increase in number if snakes were eliminated? a. producers b. decomposers c. primary consumers d. secondary consumers e. tertiary consumers