736: Assertion (A):

The thickness of the atmosphere is maximum over the Equator.

Reason (R):

High insolation and strong convection currents occur over the Equator.

(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
737: Fat present below the skin surface in our body, acts as a barrier against
(a) loss of heat from the body
(b) loss of essential body fluids
(c) loss of salts from the body
(d) entry of harmful micro-organisms from the environment
738: Match List I with List II and select the correct answer using the codes given below the Lists :

List I List II

(Substance) (Physiological role)

I. Ptyalin (A) Converts angioten-sinogen in blood into angiotensin
II. Pepsin (B) Digests starch
III. Renin (C) Digests proteins
IV. Oxytocin (D) Hydrolyses fats
(E) Induces contraction of smooth muscles
Codes:

(a) I-B, II-C, III-A, IV-E
(b) I-C, II-D, III-B, IV-E
(c) I-B, II-C, IH-E, IV-A
(d) I-C, II-A, III-B, IV-D
739: With reference to the guilds (Shreni) of ancient India that played a very important role in the country's economy, which of the following statements is /are correct?

1. Every guild was registered with the central authority of the State and the king was the chief administrative authority on them.

2. The wages, rules of work, standards and prices were fixed by the guild.

3. The guild had judicial powers over its own members.

Select the correct answer using the codes given below :

(a) 1 and 2 only
(b) 3 only
(c) 2 and 3 only
(d) 1, 2 and 3
740: Consider the following statements:

1. The Reserve Bank of India manages and services Government of India Securities but not any State Government Securities.
2. Treasury bills are issued by the Government of India and there are no treasury bills issued by the State Governments.
3. Treasury bills offer are issued at a discount from the par value. Which of the statements given above is/are correct?
(a) 1 and 2 only
(b) 3 Only
(c) 2 and 3 only
(d) 1, 2 and 3