Question

Irrigation has made farming possible in areas with little water. What might be an environmental cost associated with this human modification of the environment? A. soil salinization B. deforestation C. soil regeneration D. erosion

Answer 1

The correct answer is A. soil salinization.

Soil salinization is a side effect of irrigation, it occurs when irrigation extracts large quanities of water from an area, leaving concentrated levels of salt behind. The accumulated salt then is both harmful to the plants and soil.