How does linking soil erosion with deforestation connect economic history with environmental history?

Correct answer: Clearing for economic gain produced ecological consequences

The direct answer is A: clearing forests for economic gain produced ecological consequences such as soil erosion. Economic history studies why people, companies, or governments used land for profit, revenue, timber, railways, or farming. Environmental history studies how those actions changed soil, water, plants, animals, and human surroundings. The reasoning is: first, forests protect soil with roots and leaf cover; second, commercial or administrative interests lead to tree cutting; third, bare soil is more easily washed or blown away; therefore an economic decision creates an environmental result. Option A correctly joins the two kinds of history. Option B is wrong because roots and forest cover usually reduce erosion, so forests and soil are related. Option C is wrong because deforestation is mainly a land-use and human activity, not merely a weather event. Option D is wrong because economic activities always use natural resources and can change nature. Memory cue: ask, “Who gained economically, and what happened to the environment?”