Stratosphere

Q.

Which layer of atmosphere contains the ozone layer?

1. Troposphere

2. Thermosphere

3. Stratosphere

4. Exosphere

Q.

Write the chemical equation for the formation of ozone in the atmosphere.

Q.

Mention any three human activities which are responsible for the depletion of the ozone layer.

Q.

Which layer of the atmosphere has ozone layer in it?

1. Thermosphere

2. Mesosphere

3. Troposphere

4. Stratosphere

Q.

Ozone is a light bluish gas found in the upper-layer of the atmosphere called_________

Q. Which of the following source is used to produce solar energy?

1. Sunlight
2. Water
3. Wind
4. Coal

Q.

Stratosphere is mainly made up of ______.

1. oxygen
2. ozone
3. nitrogen
4. carbon dioxide

Q.

The ultimate source of energy is __________.

Q.

Aeroplanes fly in which of the following layers of atmosphere

1. Mesosphere

2. Stratosphere

3. Troposphere

4. None of the above

Q. Find the missing one.

Bulb: Electrical to light energy
Solar panels: ?

1. Solar to sound energy
2. Solar to electrical energy
3. Solar to wind energy
4. Solar to sound energy

Q.

_______ are responsible for the depletion of the ozone layer in the atmosphere (CFC/carbon dioxide).

Q. Write a note on magnetosphere.

Q. Atmospheric layer protective to living beings from harmful rays is :

1. Ozonosphere
2. Both B and C
3. Mesosophere
4. Thermosphere

Q. In stratosphere, which of the following elements acts as a catalyst in degradation of ozone and release of molecular oxygen ?

1. Oxygen
2. Fe
3. Carbon
4. Cl

Q. Which one of the following is held responsible for the depletion of earth's ozone layer?

1. Ethane
2. Carbon dioxide
3. Sulphuric acid
4. Chlorofluorocarbons

Q. The $C{O}_2$ content by volume, in the atmospheric air is about

1. 3.34%
2. 4%
3. 0.0314%
4. 2.1%

Q.

State whether the following statements are true or false.

1. Aeroplanes usually fly in the zone of mesosphere.

1. True
2. False

Q. Outer layer of earth is called _______.

Q. Ozone layer protects us from ___________.

1. UV rays
2. meteors
3. pollution
4. light

Q.

Solar energy is trapped by __________ and stored in __________ fuels.

Q. How does the atmosphere act as a blanket?

Q. Which one of the following is a rich source of energy and never causes atmospheric pollution?

1. Solar energy
2. Nuclear energy
3. Sewage
4. Petroleum

Q.

The layer of the atmosphere where the jet plane fly is ___.

Q. The lowermost layer of the atmosphere is _______.

1. Mesosphere
2. Stratosphere
3. Lithosphere
4. Troposphere

Q. The natural purifiers of the air .............

Q. Ozone is formed in stratosphere by action of ultravoilet radiations on oxygen.

1. True
2. False
3. Either
4. Neither

Q. Match and select the correct answer from codes given below.

Component of atmospheric air	Approximate percentage of volume
A. Nitrogen	I. 21
B. Oxygen	II. 0.9
C. Argon	III. 0.03
D. Carbon dioxide	IV. 78.08

1. A- IV, B- III, C- I, D- II
2. A- IV, B- I, C- II, D- III
3. A- IV, B- II, C- I, D- III
4. A- III, B- IV, C- II, D- I

Q. Answer the following question in 30-40 words:
Why was the pilot of Dakota aeroplane frightened again?

Q. In which layer ozone layer is found?

1. Troposphere
2. Stratosphere
3. Thermosphere
4. Mesosphere

Q. In which layer do the aeroplanes fly?

1. Stratosphere
2. Mesosphere
3. Troposphere
4. Thermosphere