Explanation:
The goal of timing nitrogen (N) applications to corn is to supply adequate N when the crop needs it, without supplying excess that can potentially be lost. Because N reactions in the soil are closely linked to both temperature and moisture conditions, this goal is often hard to achieve.
Answer: Disruptive selection
Explanation:
Disruptive selection is a natural selection method, it is also known as diversify selection.
Disruptive selection occurs when natural selection favors both extremes of continuous variation. Over time, the two extreme variations will become more common and the intermediate states will be less common or lost.
Answer:
Residual soil.
Explanation:
Transported soil is deposited by agents such as ice and water and is not derived from the underlying bedrock