Tick the
correct answer.
(i)
Which of the following gases protects us
from harmful sun rays?
|
(a) Carbon
dioxide
|
(b) Nitrogen
|
(c) Ozone
|
(ii)
The most important layer of the atmosphere is
|
(a) Troposphere
|
(b) Thermosphere
|
(c) Mesosphere
|
(iii)
Which of the following layers of the atmosphere is free from clouds?
|
(a) Troposphere
|
(b) Stratosphere
|
(c) Mesosphere
|
(iv)
As we go up the layers of the atmosphere, the pressure
|
(a) Increases
|
(b) Decreases
|
(c) Remains the same
|
(v)
When precipitation comes down to the Earth in the liquid form, it is
called
|
(a) Cloud
|
(b) Rain
|
(c) Snow
|