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प्रश्न
Why is the following planet not inhabitable?
Mercury
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उत्तर
Mercury is not inhabitable due to the following reasons:
- A part of it turned towards the Sun is always in sunlight. There it is a continuous long day. The temperature reaches 450°C in this hottest part. It experiences a perpetual summer.
- Its other side is always turned away from the Sun. There is a continuous night on this side. It is like perpetual winter, the temperature going 150°C below freezing point. Therefore, the diurnal range of temperature is very high.
- There’ is a very little atmosphere and no .water on this planet. The atmospheric envelope is so thin that Mercury’s world is airless.
संबंधित प्रश्न
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Give the distinctive features of the earth as a unique planet. Also, give three points of comparison with respect to other planets.
How many satellites are there in Solar System?
Arrange the nine planets of the solar system in order of their sizes.
Which is the unit adopted for measuring the distance in the Universe? Give a reason for its choice.
Which unit is used for measuring distances in the universe?
Write a short note on the two planets nearest to the sun.
_____________ are caused due to revolution of the Earth.
Match the following.
| 1 | Asia | Vatican city |
| 2 | Africa | Amazon rainforest |
| 3 | Europe | Sahara desert |
| 4 | South America | Kangaroo |
| 5 | Australia | Biggest continent |
