2131: Chemical composition of pearl is:
(a) Calcium carbonate
(b) Calcium carbonate and magnesium carbonate
(c) Calcium sulphate
(d) Calcium chloride
2132: In terms of economy, the visit by foreign nationals to witness the XIX Common Wealth Games in India amounted to
(a) Imports
(b) Exports
(c) Consumption
(d) Production
2133: Consider the following pairs :
Protected area---Well known for
1. Bhiterkanika, Orissa---Salt Water Crocodile
2. Desert NationalPark, Rajasthan---Great Indian Bustard
3. Eravikulam, Kerala---Hoolak Gibbon
Which of the pairs given above is/are correctly matched ?
(a) 1 only
(b) 2 only
(c) 1 and 2 only
(d) 1, 2 and 3
2134: Indus valley civilisation is also known as the Harappan culture because
(a) The site of Harappa is six times larger than Mohenjodaro site
(b) The Indus valley civilisation is considered the elementary/initial stage of the Vedic culture and Harappa is believed to be the same as Harappa mentioned in the Vedas
(c) Harappa was the first site to be excavated in the Indus valley
(d) The most important/significant evidence of the achievements of this civilisation have been excavated from Harappa
2135: Indonesian forest fire in 1997 was caused by
(a) greenhouse effect
(b) depletion of ozone layer
(c) El Nino effect
(d) None of the above