What is the 'rivet popper hypothesis' according to the passage?

What is the 'rivet popper hypothesis' according to the passage?
  1. The hypothesis that the loss of species does not affect the proper functioning of the ecosystem
  2. The hypothesis that the loss of a few species does not matter
  3. The hypothesis that the loss of species affects the quality of life
  4. The hypothesis that the loss of key species is a serious threat to the ecosystem

Solution

The 'rivet popper hypothesis' used by Stanford ecologist Paul Ehrlich states that as more and more rivets (species) are removed, the plane (ecosystem) becomes dangerously weak over a period of time.

Asked in: NCERT

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