Question

what is desertification? land becoming more fertile expansion of fertile land increase in water availability land becoming more desert-like

Explanation:

Desertification refers to the process where land becomes more desert - like. This can be due to various factors such as over - cultivation, deforestation, over - grazing, and climate change. When land becomes desert - like, it loses its fertility, has less vegetation cover, and often has reduced water availability. The other options: "land becoming more fertile" is the opposite of desertification. "Expansion of fertile land" also contradicts the concept. "Increase in water availability" is not characteristic of desertification as desert - like areas typically have less water.

Answer:

land becoming more desert - like