Multiple choice

Sulphur dioxide is a major air pollutant and has significant impacts on human health. Which of the following organisms are well-known as the indicator of SO2 pollution of air?

  1. Earthballs

  2. Cyphelloid fungi

  3. Jelly fungi

  4. Mosses

  5. Lichens

Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Lichens are the indicator of pollution. By studying the behaviour of lichens the type of pollution can be detected. They are the most sensitive and die in S02 rich area.