Which of the following is an example of a natural source of air pollution?
a. burning coal and natural gas releases carbon dioxide.
b. plowing and harvesting crops releases dust particles.
c. blowing wind creates dust storms that release particles.
d. mining releases gases trapped beneath earth's surface.

C

Explanation:

Wind Picks up Dust particles and Creates Dust storms

C - Blowing wind creates dust storms that release particles.

Explanation:

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enzyme active site and substrate specificity

enzymes bind with chemical reactants called substrates. there may be one or more substrates for each type of enzyme, depending on the particular chemical reaction. in some reactions, a single-reactant substrate is broken down into multiple products