The GATE Grind

GATE 2022 ES – Question 26

Global and Regional Environmental Issues · Ecology and Ecosystems · 1 mark · Multiple choice

Which ecosystem statement is NOT correct?

  1. Liebig’s law: growth is controlled by the most limiting factor among light, nutrients, etc.
  2. Carrying capacity is the population supported by limiting resources under given conditions
  3. The Ramsar treaty on lakes/backwaters was signed1981 and effective1985
  4. Red Data Books list threatened species in risk categories, often by organism group

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Correct answer: (C) The Ramsar treaty on lakes/backwaters was signed1981 and effective1985

Explanation

**C** gives incorrect dates and an overly narrow scope. The Ramsar Convention covers wetlands; it was adopted1971 and entered into force1975. The other alternatives correctly describe limiting factors, carrying capacity and conservation risk listings. See the [Convention history](https://www.ramsar.org/history-convention).

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