1) which is the centre of the solar system ? a) venus b) moon c) mars d) asteroid e) sun f) neptune 2) which is the coldest planet in the solar system? a) venus b) sun c) neptune d) mars e) saturn f) earth 3) in which planet humans live ? a) venus b) earth c) neptune d) uranus e) mercury f) saturn 4) people call it red planet,its planet.................. a) uranus b) earth c) saturn d) mercury e) venus f) mars 5) The temperature of the ______________ planet to the sun is ____________ than the temperature of the _____________ planet from the sun. a) nearest,higher,farthest. b) faster,higher,farthest. c) farthest,higher,nearest. d) farthest,higher,faster 6) which planet requires the least time to make one complete revolution around the sun ? a) neptune b) saturn c) mercury d) jupiter e) earth f) mars

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