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Question
Give the distinctive features of the earth as a unique planet. Also, give three points of comparison with respect to other planets.
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Solution
The earth possesses all the essential features necessary for maintaining the life-system. It is provided with atmosphere and hydrosphere along with the lithosphere. Moreover, the average temperature of 17°C is ideal for survival. Three points of comparison with respect to other planets are as follows.
- Other planets are either too hot or too cold that is unfavourable for life.
- Other planets are devoid of atmosphere and hydrosphere and some are surrounded by poisonous gases.
- Other planets are devoid of freshwater bodies, like rivers and lakes.
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