Question

how is loess beneficial?
○ it grows healthy crops.
○ it prevents wind erosion.
○ it protects land from waves.
○ it decreases the slope of riverbanks.

Explanation:

Loess is a type of wind - deposited sediment that is very fertile. Its fine - grained nature and high nutrient content make it excellent for agriculture as it can support the growth of healthy crops. Preventing wind erosion is more related to measures like windbreaks or certain soil conservation practices rather than being a primary benefit of loess itself. Protecting land from waves is a function of coastal defenses like seawalls or mangroves, not loess. Decreasing the slope of riverbanks is done through methods like terracing or riverbank stabilization, not a characteristic benefit of loess.

Answer:

A. It grows healthy crops.