1476: How do most insects respire?
(a) Through gills
(b) By tracheal system
(c) By lungs
(d) Through skin
1477: Which one of the following events, was characterised by Montague as Preventive Murder ?
(a) Killing of INA activists
(b) Massacre of Jallianwalla Bagh
(c) Shooting of the Mahatma
(d) Shooting of Curzon-Wythe
1478: Which one of the following is the appropriate reason for considering the Gondwana rocks as most important of rock systems of India?
(a) More than 90% of limestone reserves of India are found in them
(b) More than 90% of India's coal reserves are found in them
(c) More than 90% of fertile black cotton soils are spread over them
(d) None of the reasons given above is appropriate in this context
1479: When one gene controls two or more different characters simultaneously, the phenomenon is called
(a) Apomixis
(b) Pleiotropy
(c) Polyploidy
(d) Polyteny
1480: A ball bounces higher at high altitudes than in plains. This is because:
(a) The pressure on higher altitudes is lower than that in plains
(b) Downward pull due to gravity is less at higher altitudes
(c) The rarefied air offers less resistance to the ball
(d) You become more energetic at hills, so greater the force applied, higher goes the ball