What changes had occurred, which forced people to live in underground homes?
The suns position was minutely changed which caused disturbance in the natural balance. Bird extinction occurs then animals followed and people were forced to live underground.
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Welcome to the NCERT Solutions for Class 7 English - An Alien Hand - Chapter . This page offers a step-by-step solution to the specific question from Excercise 1 , Question 4: What changes had occurred, which forced people to live in underground homes?....
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