Which of these methods of soil conservation would allow a farmer to add nutrients to soil wile also preventing erosion from crop fields. a. shelterbelts . b cover crops . c countour plowing . d no-till farming

The correct option is B.
A cover crop is a crop that is purposely grown for the enrichment of the soil. Cover crop is used principally to improve the quality of the soil and to prevent erosion and run off. Cover crops prevent erosion by holding the soil particles together with their root, their decaying matter also serve to increase the fertility of the soil.

Because jennifer lopez is queen and we worship her! lol! i honestly don’t know the answer. sorry

You're asking in the ap section, so i'll give the ap calculus-style answer. alternatively, you can find the vertex of the parabola and use the "y"-coordinate as the answer.

the maximum height can occur at a critical number, that is, a number  such that  .

the derivative of  can be calculated as follows:



find a value of  that is a zero of the derivative:


this is parabola that is opening downward; we can assume there is a maximum at  .

to find that maximum, calculate  .