636: India is a party to the Ramsar Convention and has declared many areas as Ramsar Sites. Which of the following statements best describes as to how we should maintain these sites in the context of this Convention ?

(a) Keep all the sites completely inaccessible to man so that they will not be exploited

(b) Conserve all the sites through ecosystem approach and permit tourism and recreation only

(c) Conserve all the sites through ecosystem approach for a period without any exploitation, with specific criteria and specific period for each site, and then allow sustainable use of them by future generations.

(d) Conserve all the sites through ecosystem approach and allow their simultaneous sustainable use
637: The jet aircrafts fly very easily and smoothly in the lower stratosphere. What could be the appropriate explanation?

1. There are no clouds or water vapour in the lower stratosphere.

2. There are no vertical winds in the lower stratosphere.

which of the statements given above is/are correct in this context?

(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
638: The Reserve Bank of India was established in:

(a) 1935

(b) 1947

(c) 1952

(d) 1969
639: A very big refugee camp called Dadaab, recently in the news, is located in

(A) Kenya
(B) Somalia
(C) Sudan
(D) Ethiopia

640: Which of the following is not true about the paintings of Mughal period?

(a) Religious scenes were depicted

(b) Scenes of nature were depicted

(c) Court and cultural scenes were depicted to balance communal harmony

(d) Scenes of battles were depicted