Multiple choice

Which of the following can be excluded from the process of sulphur production?

  1. Decomposers

  2. Heterotrophic bacteria

  3. Hydrogen sulphide released from lakes and marshy areas

  4. Bird's excreta

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

Some amount of phosphour, is returned to the earth, in the form of bird's excreta.