51 A person sitting in a train moving with uniform velocity tossed a coin vertically up. The coin will fall
Back to his hands
52 Glass and plastics are
Poor heat conductors
53 Liquids are
Poor conductor of heat
54 The path of the earth around the sun is called
Orbit
55 Scientifically speaking, rust that an iron gets, is
Iron Oxide
56 The dense veil of fog that major cities have at night and early morning is called
Smog
57 Frost, generally, is not formed at cloudy nights because
Clouds prevent radiation and therefore help the ground temperature remained higher
58 Lightning is caused when
Opposite charges in different clouds break down the resistance offered by the intervening air
59 The zigzag pattern of lightning is due to
The least resistance of the atmosphere to the charge particles
60 Most perfumes, dyes and drugs are obtained from
Coal tar
