2901: The stones formed in human kidney consist mostly of
(a) calcium oxalate
(b) sodium acetate
(c) magnesium sulphate
(d) calcium
2902: Which one of the following is present in the largest amount in terms of per cent by mass in the earth's crust ?
(a) Silicon
(b) Oxygen
(c) Carbon
(d) Calcium
2903: When a number is divided by 13, the remainder is 6. When the same number is divided by 7, then remainder is 1. What is the number ?
2904: After retirement, a High Court Judge:
(a) Can plead in the same High Court
(b) Cannot plead in the same High Court
(c) Can plead in the Supreme Court
(d) Can plead in any of the High Courts
2905: Assertion (A):
Anti-cyclonic conditions are formed in winter season when atmospheric pressure is high and air temperatures are low.
Reason (R):
Winter rainfall in Northern India causes development of anticyclonic conditions with low temperatures.
(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 a correct explanation of A
(c) A is true, but R is false
(d) A is fasle, but R is true