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Answer the following questions:(a) If the earth did not have an atmosphere, would its average surface temperature be higher or lower than what it is now?(b) Some scientists have predicted that a global nuclear war on the earth would be followed by a severe ‘nuclear winter’ with a devastating effect on life on earth. What might be the basis of this prediction?
Answer the following questions:
(a) If the earth did not have an atmosphere, would its average surface temperature be higher or lower than what it is now?
(b) Some scientists have predicted that a global nuclear war on the earth would be followed by a severe ‘nuclear winter’ with a devastating effect on life on earth. What might be the basis of this prediction?
CBSE | Class 12 | Electromagnetic Waves | NCERT | Physics
Answer the following questions:
(a) If the earth did not have an atmosphere, would its average surface temperature be higher or lower than what it is now?
(b) Some scientists have predicted that a global nuclear war on the earth would be followed by a severe ‘nuclear winter’ with a devastating effect on life on earth. What might be the basis of this prediction?

(a) There would be no greenhouse effect if there was no atmosphere. As a result, the earth’s temperature would plummet.

(b) Smoke clouds from a worldwide nuclear war might potentially cover large areas of the sky, preventing solar light from reaching many regions of the world. There would be a ‘winter’ as a result of this.

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