Question

7. Answer in your own words.
(a) Explain with the help of a diagram
how soil is formed.
(b) Why is there a shortage of water
even though it occupies about 71%
of the earth's surface?
(c) What are the various constituents of
air? Write their uses.
(d) Why are air, water and land
considered to be valuable natural
resources ?
ter is
of​

Answer 1

Answer:

d answer

Explanation:

because there is only 0.03percent water present on earth which is drinkable and other is salty water

Answer 2

Answer:

Soil is formed through the process of weathering. Weathering is a process of physical breakdown and chemical decomposition of rocks and minerals near or at the surface of the earth. This physical and chemical decomposition is primarily done by wind, water, and climate. As a result of these processes, large rock pieces are converted into smaller pieces and eventually to soil.