Question

Why we sleep/How is bicycle works/ How many Planets are in Solar system

Answer 1

${\huge{\blue{\boxed{MasterJi}}}}$

we sleep because a chemical is prepared in our body which is released at night and makes us sleepy.

bicycle works with gears as we pedal the larger gear it revolves the smaller gear which further moves the cycle.

there are eight planet in solar system before this there were nine