2156: Assertion (A):
Coal-based thermal power stations contribute to acid-rain.
Reason (R):
Oxides of carbon are emitted when the coal burns.
(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
2157: Which one of the following regions of the world supplies the maximum of our imported commodities (in terms of rupee value)?
(a) Africa
(b) America
(c) Asia and Oceania
(d) Europe
2158: Which one of the following was the cause of disintegration of the Mughal Empire?
(a) War of succession among sons of Aurangzeb
(b) Attacks of Nadir Shah and Ahmad Shah Abdali
(c) Revolts of various communities like Jats, Sikhs, Rajputs, etc.
(d) All of the above mentioned factors contributed to the downfall of the Mughal Empire
2159: The Rowlatt Act aimed at
(a) compulsory economic support to war efforts
(b) imprisonment without trial and summary procedures for trial
(c) suppression of the Khilafat Movement
(d) imposition of restrictions on freedom of the press
2160: Which one of the following hormones contains iodine ?
(a) Thyroxine
(b) Testosterone
(c) Insulin
(d) Adrenaline