The bird population at a park decreases by 12% each year. Which statement is true? A.
The bird population is modeled with a linear equation, because the population decreases by a constant amount each year.

B.
The bird population is modeled with a linear equation, because the population decreases by a constant percent rate each year.

C.
The bird population is modeled with an exponential equation, because the population decreases by a constant amount each year.

D.
The bird population is modeled with an exponential equation, because the population decreases by a constant percent rate each year.
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