If the scientist add phenol red to the sulfuric acid solution (ph=0.3) before the acid is added to the ammonium hydroxide the sulfuric acid solution will appear

the major pests we deal with are insects, weeds and fungal diseases. a pesticide is a product, whether organic or chemical, used to kill the target pest. there are other techniques gardeners should use that can prevent the severe infestations that make the use of pesticides necessary