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Evolution — BIOLOGY STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYEvolution1 Mark
MCQ
Our solar system was formed about ............. years ago.
  • A
    15 million
  • B
    15 billion
  • C
    4.5 to 5 billion
  • D
    10 to 15 billion
✓

Answer

  1. 4.5 to 5 billion

Explanation:

The solar system was formed around 4.6 billion years ago out of the collapse of a dense cloud composed of dusts and gases.

By studying several things, mostly meteorites and using radioactive dating techniques, specifically looking at daughter isotopes, scientists have estimated that the solar system is 4.6 billion years old.

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