What is Soil?
Soil is one of the three major natural resources, alongside air
and water. It is one of the marvellous products of nature and without
which there would be no life.
Soil is made up of three main components – minerals that
come from rocks below or nearby, organic matter which is the remains
of plants and animals that use the soil, and the living organisms
that reside in the soil.
The proportion of each of these is important in determining the
type of soil that is present. But other factors such as climate,
vegetation, time, the surrounding terrain, and even human activities
(eg. farming, grazing, gardening etc.), are also important in influencing
how soil is formed and the types of soil that occur in a particular
landscape.
Soil can form from the rocks below, or from rocks a very long
distance away - perhaps being carried by wind or water. The glaciers
of the last ice age acted as giant bulldozers pushing truly huge
amounts of soil along as they grew and dropping the soil as they
melted.
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