2181: Helium is used for respiration in deep water instead of nitrogen because:
(a) It is heavier than nitrogen
(b) It is lighter than nitrogen
(c) It mixes less in blood than nitrogen
(d) It helps oxygen burn more quickly
2182: Which one among the following is not a good source of nutritional calcium?
(a) Egg
(b) Skimmed milk
(c) Ragi
(d) Rice
2183: Which party was founded by Subhash Chandra Bose in the year 1939 after he broke away from the Congress?
(a) Revolutionary Front
(b) Azad Hind Fauj
(c) Forward Block
(d) Indian Freedom Party
2184: Assertion (A)
Finance Commission aims to safeguard the fiscal autonomy of the States.
Reason (R)
Finance Commission is constituted every fifth year.
(a) Both A and R are true and R is the correct explanation of A
(b) Both A and R are 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
2185: A ball is dropped from the top of a high building with a constant acceleration of 9.8 m/s2. What will be its velocity after 3 seconds ?
(a) 9.8 m/s
(b) 19.6 m/s
(c) 29.4 m/s
(d) 39.2 m/s