What is biological productivity? I don't get what it means here is the question it is in: How does water’s role in photosynthesis explain increased biological productivity in areas of heavy precipitation?

 Water evaporates from the surface of the oceans, leaving behind salts. As the water vapor rises, it collects and is stored in clouds.

Explanation:

complete the square on the right side of the equation;

-5(x + 0)^2 + 15

answer: d. y = -x^2 + 15

b a mature ovary of a plant.