The end of a genetic sentence is indicated by the presence of a special genetic word called a that functions like a period at the end of a sentence

answer; ////increased water pollution; ///////////////////////

human didn't come from monkeys man i hate these stupid teachers

they had the law tat factories that produces smoke cannot be built near residential buildings.

building of proper sewage system was done to ensure that the waste is carried away from the humans so that they do not get diseases from it.

also they built water systems to provide water in those areas which are drought prone.