Natural process of soil formation from rocks.
Answers
Soil minerals form the basis of soil. They are produced from rocks (parent material) through the processes of weathering and natural erosion. Water, wind, temperature change, gravity, chemical interaction, living organisms and pressure differences all help break down parent material
Answer:
Soil formation from rocks is explained below.
Explanation:
Soil is a natural rock decay. To simplify the process:-
The rocks on the mountains and hills are exposed to extreme heat and cold. Water flows into weak spots (either by melting the softer parts of the hard rock or slowly percolating to the surface). Due to freezing in winter, the wet areas freeze and the bedrock cracks and expands the wet areas. Slowly, very slowly, over time, the rocks become smaller and smaller, and heavy rains, snowmelt, and earthquakes move these materials down the hills.
Then the river picks up the rocks, stones, gravel, sand and dust and moves down the hills with the flood. As the flood slows down and stops, the floating debris falls and accumulates on the plains. Over time, these plains received layer upon layer of new soil and formed the fertile plains in which we farm today.
Wind also plays a role. In very dry conditions, the wind picks up very fine particles of soil and blows them downwind (this soil is called "loess", pronounced "lerus"), which make up most of China's vast inland plains. . , steppe and savannah countries of Central Europe, America and Africa.
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