GK
THE UNIVERSE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Stars would run out of energy
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Hollywood would be overrun with celebrities
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There would be fewer planets
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The universe would be lacking in heavier elements
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Detailed explanation-1: -Stars build up heavy elements in their cores. Yet if all stars remained dead, inert things at the ends of their lives, without releasing those elements, then those heavy elements would never become available for the production of other stars, planets, and life.
Detailed explanation-2: -If there were no stars, all humans would be exposed to cosmic radiation that falls from the atmosphere due to-100 degree temperatures. Without the sun there would be no photosynthesis, causing all plants, animals, and humans to die.
Detailed explanation-3: -Based on what we know of stars, gravity, and cosmic evolution, we can make a ballpark estimate of the total number of planets in the Universe, and it likely outnumbers our stars by anywhere from a factor of 100 to 100, 000. Space is full of planets, and most of them don’t even have stars.