Question

tell me sentences on each planet

Answer 1

mercury it is the smallest planet.
venus its the hottest planet
earth it is the only planet which has life 
mars it is the only planet on which life maybe possible
jupiter it is the largest planet
saturn it is the planet with lowest density
uranus it is the planet which rains methane
neptune is the outermost planet in the solar system

Answer 2

 (1) There are 8 planet in our solar system .
(2) Planets are - Mercury , Venus, Earth ,Mars , Jupiter , Saturn , Uranus and Neptune.
(3) Planets revolve around the sun .
 (4) Jupiter is the largest planet . 
(5) Earth is the only planet where life exist .