Question

6. 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 1

True or false:

(a) Land and soil is the same thing.  

The statement is false because, land covers earth where as soil covers the land.

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

The statement is false because, the water in a lake is called as surface water.

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

The statement is false because, it takes approximately 7500 years to form a 25 cm thick layer of soil.

(d) Radon is used in decorative lights.

The statement is false because, neon is used in decorative lights.

Answer 2

Answer:

Explanation:

"a) Land and soil are the same thing- False- Soli forms the medium for the growth of plant, while land is the lithospheric part of the earth.

(b) The water in a lake is called ground water- False- The groundwater is deep down under the layers of the earth.

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

(d) Radon is used in decorative lights.- True"