E. Define these terms.
1. Soil
2. Humus
3. Weathering
4. Soil erosion
Answers
1. Soil is a material composed of five ingredients — minerals, soil organic matter, living organisms, gas, and water. Soil minerals are divided into three size classes — clay, silt, and sand the percentages of particles in these size classes is called soil texture. ... Relative sizes of sand, silt, clay.
2. a substance made from dead leaves and plants, that you put into the ground to help plants grow.
3. Weathering is the breaking down or dissolving of rocks and minerals on Earths surface. ... Water, ice, acids, salts, plants, animals, and changes in temperature are all agents of weathering. Once a rock has been broken down, a process called erosion transports the bits of rock and mineral away.
4. Soil erosion is the displacement of the upper layer of soil; it is a form of soil degradation. This natural process is caused by the dynamic activity of erosive agents, that is, water, ice, snow, air, plants, animals, and humans.
Answer:
Explanation:
1. Soil is a mixture of organic matter, minerals, gases, liquids and organisms that together supports life.
2. Humus is the organic component of soil, formed by decomposition of leaves and other plant material by soil microorganisms.
3. Weathering is the breaking down of rocks, soils and minerals as well as artificial materials through contact with the earth's material.
4. Soil erosion is the displacement of upper layer of soil by natural physical forces of water and wind that affects all the landforms.