Question

Which of the following statements is INCORRECT?

(A) We should allow sunlight to enter our house because it helps to kill germs and decrease humidity.
(B) We should put wire mesh on the windows to stop the entry of dust and light
(C) We should welcome our guests in the living room of our house.
(D) We should use bricks, cement, etc., to make a permanent house as they make the house strong. ​

Answer 1

Answer:

B option

Explanation:

We should put wire mesh on the windows to stop the entry of dust and light

Answer 2

Answer:

Option (B) is incorrect.

Explanation:

Option B says that we should put wire mesh on the windows to stop the entry of dust and light. But it is impossible to prevent dust and light using a wire mesh. The size of dust particles and the wavelength of light are very very small compared to the holes of the wire mesh. So it is impossible to prevent their entry using a wire mesh. A material with a much smaller size than that of the dust particles should be used to prevent their entry.