The oldest mineral discovered so far is, which dates back to 4.4 billion years is
Correct answer: B. Zircon
- A. Iron
- B. Zircon
- C. Diamond
- D. Cadmium
Explanation
Option B is correct since zircon is the oldest mineral discovered. It is a fact. Option A is incorrect since iron was discovered later than zircon. Option C is incorrect since the diamond was discovered later than zircon (900 million years ago). Option D is incorrect since cadmium was discovered later than zircon (in 1817).
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About Concept of Evolution
Evolution is the heritable change in populations over generations, driven by mutation, recombination, natural selection, genetic drift and reproductive isolation. Questions examine variation, adaptation, survival and reproduction, speciation, fossil and anatomical evidence, and the difference between individual acclimatization and evolutionary change in a population.
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