51: The saliva helps in the digestion of:
(a) Starch
(b) Proteins
(c) Fibres
(d) Fats
52: Which one of the following statements is true ?
(a) Union Territories are not represented in the Rajya Sabha
(b) Jurisdiction regarding election disputes rests with the Chief Election Commissioner
(c) The Speaker continues in his post even after the state council is dissolved till a new speaker is elected by the succeeding state council
(d) According to the Indian Constitution Parliament consists of Lok Sabha and Rajya Sabha only
53: The Upanishads are collectively known as
(a) Vedangas
(b) Vedanta
(c) Sruti
(d) Smriti
54: The minute arm of a clock is 10 cm long. The number of minutes taken by the tip of the arm to travel a length of 10 cm is nearly equal to:
(a) 5
(b) 10
(c) 15
(d) 20
55: Which one of the following chemicals is responsible for the depletion of ozone layer in the atmosphere?
(a) Chlorofluorocarbons
(b) Nitrous oxide
(c) Sulphur dioxide
(d) Carbon dioxide