1.Which of the following is the lightest metal ?
(A) Mercury
(B) Silver
(C) Lithium
(D) Lead
2. Which of the following measurements is not a unit of distance?
(A) Ammeter
(B) Cubit
(C) Parsec
(D) angstrom
3.The Central Arid Zone Research Institute (CAZRI) is located at
(A) Jaipur
(B) Jodhpur
(C) Jaisalmer
(D) Jallandhar