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प्रश्न
When is World Environment Day Celebrated?
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उत्तर
World Environment Day is celebrated on 5th June every year.
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संबंधित प्रश्न
Set up an experiment to measure gain and loss of heat by water, sand and air.
Fill in the blank
The layer of air around the earth is called the ________.
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 |
Choose the correct answer.
This per cent of the atmosphere is composed of nitrogen.
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?
State whether the following is true or false.
The stratosphere is the lowest layer of the atmosphere.
What is the troposphere?
How is the presence of the ozone layer essential to preserve life on earth?
Tick the correct answer
The most important layer of the atmosphere is
What is an important feature of Stratosphere?
The lowest layer of the atmosphere is ______.
The 0° longitude is called ________ meridian.
Second highest layer of Earth’s atmosphere is ______.
What is atmosphere?
A layer of Ions inside the Mesosphere is called ______.
The part of atmosphere which is consisted of variable gases with uneven composition is called ______.
Atmospheric layer important for human beings is ______.
Exosphere has a high temperature.
