prep 2 , unit 1 , leseon 1.2

All the atmospheric phenomena like rains, winds and clouds take place in .............layer

• Mesosphere

• Stratosphere

• Thermosphere

• Troposphere

Water vapour in troposphere...........the temperature on the earth

• Organises

• Decreases

• Increases

• Has no effect

...........is the second layer of atmospheric envelope

• Thermosphere

• Stratosphere

• Troposphere

• Mesosphere

.............is located between stratosphere and mesosphere

• Thermosphere

• Mesopause

• Stratopause

• Tropopause

Ozone layer is found in ......layer

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

The air moves ..... in the stratosphere layer

• Horizontally

• Vertically

• Inclined

• Randomly

Pilots prefer to fly their planes in the lower part of ..........because there are no weather disturbance and air moves horizontally

• Thermosphere

• Mesosphere

• Troposphere

• Stratosphere

The coldest atmospheric layer is ........

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

Meteors are formed in ....layer

• Ionosphere

• Stratosphere

• Mesosphere

• Exosphere

The temperature at the top of mesosphere layer reaches ....... °C

• 76

• -90

• -60

• 1200