Question

I take hundred of years to make just one centimetre of the soil explain​

Answer 1

Answer:

Do you know? It takes hundreds of years to make just one centimetre of soil. The breaking up and decay of exposed rocks, by temperature changes, frost action, plants, animals and man. The thin layer of grainy substance covering the surface of the earth is called soil.

Explanation:

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Answer 2

Answer and Explanation:We say that it takes 500 to thousands of years to create an inch of topsoil. The reason is that soil is often derived from rock. The rock has to be broken into small pieces first. This happens by physical weathering: things like freezing and thawing in colder climates, and chemical weathering in warmer climates. Once cracks form in the rock and plants can take hold, the plants continue to break the rock into smaller pieces by root action and start to add organic matter. Chemical weathering also continues, turning the rock pieces into the sand, silt, and clay particles that make up our soil.

Formally, we think of soil as being formed by five factors: 1) Parent material…or the type of rock or unconsolidated material we start with; 2) Vegetation…the action of roots and the addition of organic matter; 3) climate…which controls physical and chemical weathering processes; 4) Topography…which controls the stability of the soil in the landscape; and lastly 5) TIME…as mentioned above.

So it can take an incredible amount of time to form topsoil. Luckily, two things in our favor allow us to have a lot of topsoil in the United States. First, not all soil forms from solid rock. The glaciers of the north crushed the parent material and did much of the physical weathering for us. Many soils  formed after glaciers retreated are only about 10,000 to 20,000 years old, but have thick topsoils. Other soils formed in materials that were already physically weathered and deposited by moving water or wind, allowing topsoil to form much faster.

Second, outside of glaciated areas we have had a very long time to form soil. In the panhandle of Florida, for example, the landscape has been exposed to continuous weathering for close to 1 million years. So while it takes a great deal of time to form topsoil, we have had that time.