1.

True or false?(a) Land and soil are the same thing.(b) The water in a lake is called ground water.(c) It takes about 1000 years to form a 25 cm thick layer of soil.(d) Radon is used in decorative lights.

Answer» True or false?

(a) Land and soil are the same thing.

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

(c) It takes about 1000 years to form a 25 cm thick layer of soil.

(d) Radon is used in decorative lights.


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