Question

The guano deposits are obtained from the excreta of

• A. Reptiles
• B. Human
• C. Marine birds
• D. Microorganisms

Answer 1

Answer: (C)

Marine birds

• The long-term activity of marine birds and bats of remote islands results in the formation of guano deposits which are rich in phosphorus and nitrogen and can be used as fertilizer without any processing.
• These animals are known as guanotelic organisms. Guano deposits are non-toxic and insoluble.

So, the correct answer is option C.