Question

What do u mean by pollution Write two ways by which air pollution can be controlled What is biodegradable waste Write two ill-efects of water What is difference beetween star and planets What do we mean by solar system Write 2 types of movement of earth Write 2 types of pollution Write 2 planets of solar system Write 9 planets of solar system

Answer 1

pollution is nothing but the things which are harm full to our environment and air pollution should be controlled by reducing bikes and chemicals should be reduced star is not exist for living but planet earth it is exist 2 types of pollution are sound pollution air pollution water pollution 9 planets are mercury ,Venus, earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto but Pluto is eliminated from solar system because it is not rotating in its orbit.