It is the wearing away of soil.

It is the richest layer of the soil.

It is composed of solid rocks or parent rock materials.

It is the richest layer of the soil.

It is very common in the deserts.

It is formed when rivers overflow. The areas of flat land found on both sides of the river contain fertile deposits of eroded sediments

A ______ is a mass of earth and rock that suddenly moves down the slope.

Which of the following is an agent of soil erosion?

lens

glass

wood

book

_________ is turning-over the soil before planting.

______ is planting different crops during a different seasons.

____ is planting different crops in different arrangements.

______ is building gradual steps along the mountainsides to decrease water runoff.

______ are chemicals that are used to kill organisms that attack or compete with useful plants.

______ are chemicals that are used to kill unwanted plants.