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Which of the following is/are correctly matched?
1. Lithosphere ———————————————————————- earth crust.
2. Hydrosphere ————————————————————————– water.
3. Bioshpere ———————————————————————— air blanket.
What is/are true for the role of atmosphere?
1. The atmosphere keeps the average temperature of the Earth fairly steady during
the day.
2. During the night, it slows down the escape of heat into outer space.
Which of the following factors influence winds?
1. Uneven heating of the Earth
2. Revolution of the Earth
3. Mountain ranges
Which of the following is/are effect of water pollution?
1. Disease causing microbes in water.
2. Reduction in amount of dissolved oxygen.
3. Sudden change in temperature effect the breeding of aquatic animals.
Which ofthe following is/are the factors responsible for formation of soil?
1. Wind
2. Sun
3. Rocks
4. Water
Which of the following is/are correct for the ozone layer?
1. It is found in the form of a diatomic molecule.
2. It is poisonous.
3. It absorbs harmful radiations from the Sun.