3951: What is done to raise the dough while making bread?
(a) Alcohol is added
(b) Yeast is added
(c) Carbon dioxide is passed
(d) Air is passed
3952: In which type of rocks are metals like gold and copper mostly found?
(a) Old igneous
(b) Old metamorphic
(c) Old sedimentary
(d) New metamorphic
3953: The Himalayas are formed of parallel fold ranges, of which the oldest range is
(a) the Siwalik Range
(b) the Lesser Himalayas
(c) the Great Himalayan Range
(d) the Dhaula Dhar Range
3954: Thillana is a format of
(a) Kathak
(b) Kuchipudi
(c) Odissi
(d) Bharatnatyam
3955: Which substance is commonly used in refrigerators?
(a) Freon
(b) Oxygen
(c) Ammonia
(d) Sulphur dioxide