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STD 12 - 6. evolution — Biology STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceBiologySTD 12 - 6. evolution1 Mark
MCQ
The concept of chemical evolution is based on
  • A
    interaction of water, air and clay under intense heat
  • B
    effect of solar radiation on chemicals
  • ✓
    possible origin of life by combination of chemicals under suitable environmental conditions
  • D
    crystallization of chemicals.
✓

Answer

Correct option: C.
possible origin of life by combination of chemicals under suitable environmental conditions
c
(c) : Chemical evolution has two meanings and uses. The first refers to the theories of evolution of the chemical elements in the universe through nucleosynthesis. The second use of chemical evolution or chemosynthesis is as a hypothesis to explain how life might possibly have developed or evolved from non­life.

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