Question

1. Match the following:

Column 1	Column 2
Troposphere	Jet planes fly here
Stratosphere	No air in this region
Mesosphere	Man-made satellites orbit here
Thermosphere	Insufficient air to breathe here
Exosphere	Clouds form here

Answer 1

(a). Troposphere - (v). Clouds form here

• In this layer of atmosphere, we get to see weather changes. Since, water vapour in the air is present here, clouds are also formed here.

(b). Stratosphere - (i). Jet planes fly here

• This layer of atmosphere has very thin air density and as a result, jet planes fly here with minimum disturbances to flights.

(c). Mesosphere - (iv). Insufficient air to breathe here

• This layer of atmosphere has insufficient air due to which it is difficult to breathe here.

(d). Thermosphere - (iii). Man-made satellites orbit here

• This layer of atmosphere has no fixed boundary hence, man-made satellites orbit in this region.

(e). Exosphere - (ii). No air in this region

• This layer has no air and is boundary-less that opens up to outer space.

Column I	Column II
(a). Troposphere	(v). Clouds form here
(b). Stratosphere	(i). Jet planes fly here
(c). Mesosphere	(iv). Insufficient air to breathe here
(d). Thermosphere	(iii). Man-made satellites orbit here
(e). Exosphere	(ii). No air in this region