626: Three bells toll at intervals of 9, 12 and 15 minutes respectively. All three begin to toll at 8 a.m. At what time will they first toll together again?
(a) 8.45 a.m.
(b) 10.30 a.m.
(c) 11.00 a.m.
(d) 1.30 p.m.
627: Which was the Capital of Andhra State when it was made a separate State in the year 1953 ?

(a) Guntur

(b) Kurnool

(c) Nellore

(d) Warangal
628: The increasing amount of carbon dioxide in the air is slowly raising the temperature of the atmosphere, because it absorbs

(a) the water vapour of the air and retains its heat

(b) the ultraviolet part of the solar radiation

(c) all the solar radiations

(d) the infrared part of the solar radiation
629: Consider the following statements:

1. In the world, the tropical deserts occur along the western margins of continents within the trade wind belt.

2. In India, the East Himalayan region gets high rainfall from north-east winds.

Which of the statements given above is/are correct?

(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
630: Which of the following is geographically closest to Great Nicobar ?

(a) Sumatra
(b) Borneo
(c) Java
(d) Sri Lanka