Which statement best describes the effects chemicals may have on the environment?A.The effects of chemicals on the environment are easy to observe.B.Some chemicals may help the environment.C.Chemicals must be released in large amounts to affect the environment.D.All chemicals harm the environment.

What is wrong with the statement below?All chemicals are harmful to the environment in some way.A.Chemicals are not harmful to the environment unless they are present in large amounts.B.Chemicals do not affect the environment.C.Chemicals may be harmful, helpful, or have little effect on the environment.D.Chemicals are only helpful to the environment.SUBMITarrow_backPREVIOUS

Which of the following is the best way to reduce the harm that chemicals can cause the environment?A.Allow chemical companies to control the types of chemicals they produceB.Ban all chemicals from the environmentC.Identify chemicals that are harmful and regulate their useD.Only allow people to use chemicals that are helpfulSUBMITarrow_backPREVIOUS

Hormones taken as medicine can harm fish when the hormones end up in waterways. What does this show about the impact of chemicals on the environment?A.Chemicals that help people may harm the environment.B.The benefits people get from the medicines are more important than the harm to the fish.C.People should not take medicine that could pollute the environment.D.Chemicals that are added to water always have harmful effects.SUBMITarrow_backPREVIOUS

What is the effect of pollution on aquatic viability?    A.Pollution has no impact on aquatic ecosystems.B.Pollution improves aquatic ecosystems.C.Pollution leads to the degradation of aquatic habitats, harming aquatic life and reducing biodiversity. D.Pollution increases the oxygen levels in aquatic ecosystems.

The harmful effect of pollution depend on?Options :The concentration of pollutants and duration of exposureThe concentration of pollutants and the organismThe concentration, duration of exposure to pollutants and the organismThe organism only