a2zinterviews

21.	Mangrove forests in Asia are largely concentrated in
	A.  Indonesia
	B.  India
	C.  Philippines
	D.  Malaysia

Answer

Ans: A Indonesia

22.	Earth summit was held in
	A.  Copenhagen
	B.  Rio de Janeiro
	C.  London
	D.  Chicago

Answer

Ans: B Rio de Janeiro

23.	In ecosystem, a stable biogroup is called
	A.  climax
	B.  seral
	C.  ecotone
	D.  succession

Answer

Ans: C ecotone

24.	World Environment Day is observed on
	A.  October 2
	B.  June 5
	C.  November 14
	D.  November 19

Answer

Ans: B June 5

25.	Which of the following is not a greenhouse gas?
	A.  Nitrogen
	B.  Nitrous oxide
	C.  Methane
	D.  Carbon dioxide

Answer

Ans: A Nitrogen