Consider the following pairs of indicator species with what they indicate:

  1. Stone fly → Air pollution
  2. Lichens→ Water pollution
  3. Mosses Indicate acidic soil

Which of the above is/are correct?

Answer: [C] 3 Only

Stone Fly indicates extent of water pollution. Lichens are indicators of air pollution.

This question is a part of GKToday's Integrated IAS General Studies Module