Question

(i) What is the full form of : 

(a) UNEP (b) CFCs.

(ii) On what basis are organisms grouped as producers, consumers and decomposers ?

(iii) Write two problems that would arise if there were no decomposers in an ecosystem.

Answer 1

(i) The full form of : 

(a) UNEP: United Nations Environment Programmes.

(b) CFCs : Chlorofluorocarbons. 

(ii) Organisms can be grouped as producers, consumers and decomposers according to the manner in which they obtain their food from the environment.

(iii) Two problems that would arise in absence of decomposers in an ecosystem are : 

(a) Decomposition of garbage as well as dead plants and animals will not take place.

(b) Natural replenishment of soil will not take place.