581: Why is a plant called Prosopis juliflora often mentioned in news ?

(a) Its extract is widely used in cosmetics.
(b) It tends to reduce the biodiversity in the area in which it grows.
(c) Its extract is used in the synthesis of pesticides.
(d) None of the above
582: Assertion (A):
Saluva Narasimha put an end to the old dynasty and assumed the royal title.

Reason (R):
He wanted to save the kingdom from further degeneration and disintegration.

(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
583: Consider the following statements:

1. Animal Welfare Board of India is established under the Environment (Protection) Act, 1986.
2. National Tiger Conservation Authority is a statutory body.
3. National Ganga River Basin Authority is chaired by the Prime Minister.

Which of the statements given above is/are correct?

(a) 1 only
(b) 2 and 3 only
(c) 2 only
(d) 1, 2 and 3
584: Dalbergia species is associated with which one of the following ?

(a) Cashew nut
(b) Tea
(c) Coffee
(d) Rosewood
585: The Vitamin containing cobalt is

(a) B1

(b) B2

(c) B6

(d) B12