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प्रश्न
State three factors which have made life possible on the Earth and on no other planet.
उत्तर
The factors which have made life possible on earth and on no other planet are as follows :
- Earth is the only planet in the Solar System which is neither too hot nor too cold.
- The atmospheric blanket around the earth protects it from ultra-violet and other deadly sun rays.
- The mixture of gases in the atmosphere is suited to the growth and survival of life.
- Plants, through the process of photosynthesis, take away carbon dioxide from the atmosphere and make oxygen available for animals to breathe.
- Oceans play a great supporting role. They cover three-fourths of the earths surface and are responsible for the operation of the hydrological cycle which makes water on land surface available.
- Circulation of many life cycles not make energy and food available but also process the wastes which otherwise would harm life.
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संबंधित प्रश्न
Short Answer Question:
Why is the earth called a watery planet?
Short Answer Question:
Why is the planet Venus hotter than the planet Mercury?
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___________is the major reservoir of carbon on the earth.
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Name the three planets which have rings around them.
In the picture below, correct the sequence of the planets from the sun.
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