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Question

  • Why do children always slide down the slide and not slide up? If this slide were there in Sunita's spacecraft, would children slide like this? Why?
  • Why do we see stars mostly at night?
  • Looking at earth from the space, Sunita said, ''Different countries cannot be seen as separate from here. These lines are on paper. They are made by us.'' What do you understand by this?

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Solution

  • Children always slide down a slide because the earth has a very powerful pulling force that always pulls things towards it.
  • The stars are celestial bodies having light of their own. The sun is also a star. It is the closest star to the earth. During the day time we are not able to see the stars because the sun's light is very bright and it blocks the other stars.
  • When observed from the space, the lines that we see between the countries and states are not visible. These lines that we see on the map are not actually present but are drawn by man for his own convenience.

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