Question

what is the primary issue associated with erosion in agriculture? loss of soil fertility reduced fertilizer need improved water retention increase in crop yield

Explanation:

Erosion in agriculture typically removes the topsoil, which is rich in nutrients and organic matter. This removal leads to a loss of soil fertility, as the topsoil is crucial for supporting plant growth. Reduced fertilizer need is incorrect because erosion usually makes soil less fertile, often requiring more fertilizers. Improved water retention is wrong as erosion generally degrades soil structure, reducing water - holding capacity. An increase in crop yield is also incorrect since eroded soil is less capable of supporting healthy crop growth, usually leading to lower yields.

Answer:

A. loss of soil fertility