I think its harmful, because its unhealthy for workers and its harmful to the environment and to the people. Its also a waste of water and it pollutes the air.
hope that i helped and sorry if i was too late.
I think that's fauls...I think speed cause more light wave so...yea
A physical change occur when objects or substances undergo a change that does not change in which the composition of a substance changes or one or more substances combine or break up from new substances.
I would say the 2nd one It helps growth and repair of cells of orgasms
But your school would probably say the 3rd one It helps remove toxins from the body to maintain homeostasis
A sudden change in a character/ gene / chromosomes of an organism is mutation.
