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Very short question6. What does the universe mean?what does the solar system mean?8. What is milky way?9. What is the meaning of 'earth Surface"10. What is the significance of the biosphere? |
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Answer» 1. all existing matter and space considered as a whole; the cosmos. The universe is believed to be at least 10 billion light years in diameter and contains a vast number of galaxies; it has been expanding since its creation in the Big Bang about 13 billion years ago.2. The Solar System is the gravitationally bound system of the planets and the Sun plus other objects that orbit it, either directly or indirectly.3. The Milky Way is the galaxy that contains our Solar System. The descriptive "milky" is derived from the appearance from Earth of the galaxy – a band of light seen in the night sky formed from stars .4. |
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