What is soil made up of
?
Soil is very important
to us because it supports plants. Many
small animals live in the soil. Let us
find out what soil is made up of. Soil
is made up of humus, clay, silt, sand and small stones. Humus is the layer on top of the soil
surface. It is black. It is formed by decaying dead animals and
plants.
The flow of water
through different types of soil
There
are three main types of soils. These
three types of soils are different in terms of the size of the soil
particles. They are sand, garden soil
and clay. Sandy soil are yellowish in
colour. It contains a lot of air space and are grainy texture. Garden soil are brown or balck in colour. It
contains some air space and are soft and moist texture. Clay soil are red,
brown or grey in colour. It contains
very little air space and are smooth and fine texture.
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