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 ?​

Answer 1

Answer:

a.weathering of rocks

b. sir to over use of water . Only 1 percent fresh water is available

c78 nitrogen 21 oxygen 1other 0.03 co2

Answer 2

Explanation:

I hope this answer is help you