Tamil Nadu (English Medium) Plus 2 Biology Science Study Materials, Online Learning, Question Papers, Classnotes, Practice Test, MCQ | Smartindia Educational Program : www.smartindia.net.in

Question-1
The species diversity of plants on earth will be

(A) 2.4%	(B) 22%
(C) 8.1%	(D) 85%

Question-2
Mercury pollution causes

(A) black foot diseases	(B) itai-itai diseases
(C) blue-baby syndrome	(D) Minamata disease

Question-3
Chipko movement was launched for the protection of

(A) grasslands	(B) forests
(C) liverstock	(D) wet lands

Question-4
A renewable exhaustible natural resource is

(A) coal	(B) petroleum
(C) minerals	(D) forest

Question-5
According to Kyoto protocol, the major nations abide to reduce concentration of green-house gases by

(A) 2008	(B) 2010
(C) 2012	(D) 2018

Question-6
The term 'Alpha diversity' refers to

(A) genetic diversity	(B) community and ecosystem diversity
(C) species diversity	(D) diversity among the plants

Question-7
Tiger is not a resident in which one of the following national park ?

(A) Ranthambhor	(B) Sunderbans
(C) Gir	(D) Jim Corbett

Question-8
The alien species introduced into lake Victoria that was responsible for the extinction of Cichlid fishes is

(A) African catfish	(B) Water hyacinth
(C) Carrot grass	(D) Nile perch

Question-9
Ozone (O₃) depletion is due to

(A) PAN	(B) NO_x
(C) CFCs	(D) Sulphates

Question-10
Which one of the following has maximum genetic diversity in India ?

(A) Teak	(B) Mango
(C) Wheat	(D) Tea

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Plus 2 Biology Science

Tamil Nadu (English Medium)

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