What human activities lead to soil erosion

The human activities that lead to soil erosion are deforestation and agriculture.

Explanation:

Soil erosion (the wearing away and displacement of the topsoil) may be caused by natural factors such as strong winds, water, ice and animals, or by human activities that make the soil weak.

Deforestation is the logging or burning of trees for the purpose of construction or the usage of wood for several activities (heating or paper-making). When they remove the vegetation, they leave the upper layer of soil (topsoil) unprotected against winds and water.

Agriculture is the activity of growing crops for the production of food. When farmers plant their vegetation, they remove the topsoil and this is mostly carried away by winds into water streams (they become sediments).

a = executive branch; b = judicial branch

the rocks are classified by the geological process they are formed by. the three main groups of rocks are igneous, metamorphic, and sedimentary. minerals are not they are classified under the chemical classes they are in. these groups include silicates, sulfates and carbonates.