2651: Which of the following can be threats to the biodiversity of a geographical area?
1. Global warming
2. Fragmentation of habitat
3. Invasion of alien species
4. Promotion of vegetarianism
Select the correct answer using the codes given below :
(a) 1, 2 and 3 only
(b) 2 and 3 only
(c) 1 and 4 only
(d) 1, 2, 3 and 4
2652: Consider the following:
1. Camphor
2. Chicory
3. Vanilla
Which of the above is/are plant product(s)?
(a) 1 & 2
(b) 1 & 3
(c) 3 only
(d) 1, 2, 3
2653: Assertion (A):
Coal-based thermal power stations contribute to acid-rain.
Reason (R):
Oxides of carbon are emitted when the coal burns.
(a) Both A and R are individually true and R is the correct explanation of A
(b) Both A and R are individually true but R is NOT the correct explanation of A
(c) A is true but R is false
(d) A is false but R is true
2654: Which one of the following seeds can benefit a patient of diabetes mellitus by normalizing his blood sugar level?
(a) Coriander seeds
(b) Mustard seeds
(c) Cumin seeds
(d) Fenugreek seeds
2655: The first Asian Games were held at:
(a) New Delhi in 1950
(b) Bangkok in 1952
(c) Singapore in 1952
(d) Kuala Lumpur in 1952