Science, asked by parvinsaw7, 1 month ago

dash forms the uppermost layer of soil

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Answered by samarthcv
3

The layers of the soil are called horizons. The uppermost horizon is called the topsoil layer. The topsoil layer is a mixture of sand, silt, clay and broken down organic matter, called humus. Humus is rich, highly decomposed organic matter mostly made from dead plants, crunched-up leaves, dead insects and twigs.

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