966: Chemical composition of pearl is:
(a) Calcium carbonate
(b) Calcium carbonate and magnesium carbonate
(c) Calcium sulphate
(d) Calcium chloride
967: Very small-time intervals are accurately measured by the:
(a) Pulsars
(b) White dwarfs
(c) Atomic clocks
(d) Quartz clocks
968: During a thunderstorm, the thunder in the skies is produced by the
1. meeting of cumulonimbus clouds in the sky
2. lightning that separates the nimbus clouds
3. violent upward movement of air and water particles
Select the correct answer using the codes given below.
(a) 1 only
(b) 2 and 3
(C) 1 and 3
(d) None of the above produces the thunder
969: Consider the following statements:
1. Union Territories are not represented in the Rajya Sabha.
2. It is within the purview of the Chief Election Commissioner to adjudicate the election disputes.
3. According to the Constitution of India, the Parliament consists of the Lok Sabha and the Rajya Sabha only.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 and 3
(c) 1 and 3
(d) None
970: The area known as 'Golan Heights' sometimes appears in the news in the context of the events related to
(a) Central Asia
(b) Middle East
(c) South-East Asia
(d) Central Africa