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प्रश्न
We need to understand that global warming, climate change, acid rain, and ozone depletion are all happening because of our dependence on fossil fuels and CFC-based technologies. Therefore, the need of the hour is to reduce our dependence on them.
What can you do in this regard?
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उत्तर
The ways to reduce our dependency on them are :
- By using materials such as bamboo, recycled metal, and organic paints in the construction of buildings.
- By using solar energy to heat and light homes and offices.
- By using clean fuel like CNG and unleaded petrol to run vehicles.
- By making changes in everyday practices such as
(a) choosing to travel in public vehicles, biking, walking, or using a carpool.
(b) buying energy-efficient household appliances.
(c) replacing light bulbs with CFL bulbs.
APPEARS IN
संबंधित प्रश्न
How is our atmosphere different from the atmospheres on Venus and Mars?
State in brief how water vapour in the atmosphere determines the climatic conditions
Fill in the blank
______ per cent of the atmosphere is made of nitrogen.
Match the following.
| A | B | ||
| 1. | Troposphere | (i) | Ozone |
| 2. | Stratosphere | (ii) | Ions |
| 3. | Thermosphere | (iii) | Outer Space |
| 4. | Exosphere | (iv) | Lowest Temperature |
| 5. | Mesosphere | (v) | Densest Layer of atmosphere |
How is the presence of the ozone layer essential to preserve life on earth?
What is known as troposphere?
In which layer of atmosphere do all weather conditions occur?
Tick the correct answer
As we go up the layers of the atmosphere, the pressure
How is ozone important for us?
State whether the following sentence is true (T) or false (F).
The atmosphere is composed mainly of nitrogen and oxygen.
Short Answer Type Question:
Give an account of the composition of the atmosphere. Also, discuss the importance of the components.
Mountaineers carry oxygen in cylinders when they climb mountains that are more than 5000 m high. What could be the reason for that?
Write the significance of the following gases.
Oxygen __________________
Carbon dioxide __________________
Ozone __________________
The study of weather is called ___________.
Name the atmospheric layers.
Why is atmosphere essential for life on earth?
The uppermost layer of the atmosphere is ______.
Atmosphere is composed of ______ nitrogen.
______ layer contain ozone layer.
Analogy:
Weather changes: Troposphere.
Ozone layer: ______.
