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True or False?

(a) Land and soil is the same thing.

(b) The water in a lake is called ground water.

(c) It takes about thousand years to form a 25 cm thick layer of soil.

(d) Radon is used in decorative lights.

1 Answer

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(a) False – Land consists of stones, soil and big rocks.

(b) False – Water trapped below the ground over the bedrocks is called ground water.

(c) False – It almost takes around thousand years to form a 2.5 cm thick layer of soil.

(d) False – Neon is used in decorative lights.

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