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 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-2
What is the main cause for the extinction of some species in tropical forest ?

(A) Deforestation	(B) Afforestation
(C) Pollution	(D) Soil erosion

Question-3
Which one of the following is an example of exsitu conservation ?

(A) wild life sanctuary	(B) seed bank
(C) sacred groves	(D) national park

Question-4
Chipko movement was launched for the protection of

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

Question-5
An inexhaustible non- conventional universal source of energy is

(A) wind energy	(B) solar energy
(C) hydrothermal energy	(D) tidal energy

Question-6
Which one is not the renewable energy of natural resources ?

(A) Tidal energy	(B) Wind energy
(C) Fossil energy	(D) Solar energy

Question-7
A renewable exhaustible natural resource is

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

Question-8
Which one of the following has maximum genetic diversity in India ?

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

Question-9
Soil erosion is prevented by

(A) deforestation'afforestation	(B) reduction of CFCs production
(C) afforestation	(D) use of CNG in all transports

Question-10
Acid rain is mainly caused due to increase in the levels of the gas (es)

(A) SO₂ only	(B) CO₂ only
(C) SO₂, CO₂	(D) NO₂ and SO₂

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Plus 2 Biology Science

Tamil Nadu (English Medium)

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