Question

Exercise
1. Fill in the blanks.
(a) The Joyer of ozone gas absorbs
Ultra voulet rays that come from the
sun to the earth.
(b) of the total water available on
the earth, fresh water forms 0./.
percent,
(c) Both botiland.cbiotis
constituents
are present in the soil.
2. Why is it said that - ?
(a) The ozone layer is a protective
shell of the earth.
(b) Water is life.
(c) Seawater is useful even though it is
not potable.
5. Name the follo
(a) Constituents
(b) Biotic consti
(c) Fossil fuel
(d) Inert gases i
(e) Gases tha
the ozone la
6. True or false ?
(a) Land and so
(b) The water in
water.
(c) It takes abo
25 cm thick
(d) Radon is use
7. Answer in your
(a) Explain with
how soil is f
(b) Why is ther
even though
3. What will happen if -
(a) Microbes in the soil get destroyed.
(b) The number of vehicles and
factories in your surroundings
increases.​

Answer 1

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Answer 2

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