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प्रश्न
When water is heated, we see bubbles rising up. Why?
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उत्तर
Water has a lot of air dissolved on it. This is what allows breathing to fishes and other aquatic beings. The solubility of gases decreases when the temperature is raised, and that is why the dissolved air bubbles out from the water.
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संबंधित प्रश्न
How is our atmosphere different from the atmospheres on Venus and Mars?
The upper part of the thermosphere is called the ______.
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 |
State whether the following is true or false.
The stratosphere is the lowest layer of the atmosphere.
Fill in the blank:
The layer of the atmosphere where ozone is found is called the ________.
Give an account of the different layers of the atmosphere.
Tick the correct answer:
The major constituent of atmosphere by percent is ____________
The ______ layer protects us from the harmful UV rays coming from the sun.
The air envelope is thicker near the earth’s surface and we go higher the density and availability of air gradually decreases. Why?
The atmosphere of the earth is heated by radiations which are mainly
