Question

1. The
layer lies beyond the stratosphere. It extends for 50 Kms- 80 Kms.
It is some-times called as the
layer.
It is the layer in
2. The lowermost layer of the atmosphere is
which we live. It extends upto
Kms above the Earth's surface. All
changes take place in this layer.
3. The layer beyond the mesosphere is
It extends from 80 Kms
to Kms above earth's surface. Temperature is always high so it is also called as
Mesosphere and thermosphere are often referred as the
The air is very
4. The outermost layer of the atmosphere is
in this layer.
5. The layer above the
stratosphere layer is a
rays coming from the sun.
is the stratosphere. In the outer part of
layer which protects us from the harmful
fly in this layer
Q2. Correct the underlined words:
1. Consumption means process in which gas cools down to liquid.
2. Oxygen is required for photosynthesis.
3. The water received after the process of distillation is sediment
4. Smoke in air absorbs ultra-violet rays.
5. Milk is known as universal solvent.
Q3. Tick the correct option:
1. Air contains maximum amount of carbon dioxide / oxygen.
2. Soluble impurities in water are removed by distillation / sedimentation,
3. The atmosphere supports / destroys life.
4. We get more/ less oxygen to breathe as we go high up.
5. Nearly 75% of the earth is covered with water/ air.
24
2​

Answer 1

Answer:

answer of 1 .

troposphere