1.

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» 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?


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