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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
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.
Communication satellites orbit in thermosphere.
State whether the following is true or false.
The stratosphere extends from the top of the troposphere up to 80 km above the surface of the earth.
How is ozone important for us?
All types of clouds are found in the ______.
The upper limit of the troposphere is called as ______.
The atmospheric layer, which lies beyond the exosphere is ______.
This is the earth’s magnetic belt ______.
The atmosphere is held in place by the earth’s ______.
Analogy:
Weather changes: Troposphere.
Ozone layer: ______.
