2451: Contour bunding is a method of conservation used in

(a) desert margins, liable to strong wind action

(b) low flat plains, close to stream courses, liable to flooding

(c) scrublands, liable to spread of weed growth

(d) None of the above
2452: The Speaker can ask a member of the House to stop speaking and let another member speak. This phenomenon is known as

(a) decorum

(b) crossing the floor

(c) interpellation

(d) yielding the floor
2453: Assertion (A) :

In Australia, cattle rearing is done more for meat than for milk.

Reason (R) :

Australians are traditionally non-vegetarians.

(a) Both A and R are true, and R is the correct explanation of A
(b) Both A and R are true, but R is not a correct explanation of A
(c) A is true, but R is false
(d) A is false, but R is true
2454: Other than poaching, what are the possible reasons for the decline in the population of Ganges River Dolphins?

1. Construction of dams and barrages on rivers.
2. Increase in the population of crocodiles in rivers.
3. Getting trapped in fishing nets accidentally.
4. Use of synthetic fertilizers and other agricultural chemicals in crop-fields in the vicinity of rivers.

Select the correct answer using the code given below :

(a) 1 and 2 only
(b) 2 and 3 only
(c) 1, 3 and 4 only
(d) 1, 2, 3 and 4
2455: A person walking barefooted in a field feels a sharp sting and on examination two puncture marks are found on his leg. He is most probably bitten by:

(a) Poisonous snake

(b) Non-poisonous snake

(c) Scorpion

(d) Rat