Explain
a) weathering
b) soil
c) Horizons
d) Soil profile
Answers
Explanation:
1.
Weathering is the breaking down or dissolving of rocks and minerals on Earths surface. Once a rock has been broken down, a process called erosion transports the bits of rock and minerals
2.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 (Figure 1); the percentages of particles in these size classes is called soil texture. The mineralogy of soils is diverse.
3 . A soil horizon is a layer parallel to the soil surface whose physical, chemical and biological characteristics differ from the layers above and beneath. Horizons are defined in many cases by obvious physical features, mainly colour and texture.
4. A soil profile is a vertical section of soil like the diagram above. It allows you to examine the structure of soil. A soil profile is divided into layers called horizons. The main soil horizons are A, B, C and D. ... The C Horizon consists of weathering rock.
weathering: the breakdown of rocks into fine particles. this process takes millions of years
soil: the layer on earth's crust in which the plants grow. it consists humus( organic matter ), water, air, minerals
horizons: a layer parallel to soil surface phyiscal, chemical and biological characteristics differ from the layers upper and beneath
soil profile: the vertical secitions of soil.
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