4296: Assertion
Carbon dioxide in air is necessary for sustaining life
Reason
Carbon dioxide is assimilated in carbohydrates in photosynthesis
(a) if A and R both are correct and R is the correct explanation of A
(b) if A and R both are correct but R is not the correct explanation of A
(c) if A is correct and R is incorrect
(d) if A is incorrect and R is correct
4297: The release of which one of the following into ponds and wells helps in controlling the mosquitoes?
(a) Gambusia fish
(b) Snail
(c) Crab
(d) Dogfish
4298: Match List I with List II and select the correct answer using the codes given below the lists :
List I---------------------List II
I. Deccan Traps-------(A) Late Cenozoic
II. Western Ghats----(B) Pre-Cambrian
III. Aravalli-------------(C) Cretaceous-Eocene
IV. Narmada-Tapi-----(D) Cambrian Alluvial deposits
-------(E) Pleistocene
Codes:
(a) I-C, II-E, III-A, IV-D
(b) I-C, II-A, III-B, IV-E
(c) I-B, II-A, III-C, IV-D
(d) I-A, II-D, III-B, IV-E
4299: "Reserprine" derived from the plant "Serpentina" is used to:
(a) Alleviate pains
(b) Alleviate high blood pressure
(c) Alleviate low blood pressure
(d) Cure rickets
4300: Which one of the following statements regarding SAARC countries is correct?
(a) No SAARC country other than India has a common border with another member country, Sri Lanka and Maldives being islands
(b) All the countries with which India has border are members of SAARC, Sri Lanka and Maldives being islands
(c) Except Sri Lanka and Maldives, all the SAARC countries have common border with China
(d) Except Sri Lanka and Maldives no other SAARC country has islands as part of its territory