Environmental pollution is worsened by the release from the automobile exhaust of

Explanation

Automobiles release many substances into the environment, some of which are harmful and contribute to environmental pollution. The question asks which of the options released from automobile exhaust worsens environmental pollution. Option A, water vapour, is a natural component of the atmosphere and not harmful to the environment. Option B, steam, is also a natural component of the atmosphere and not harmful to the environment. Option C, smoke, is a complex mixture of solid and liquid particles and gases, which can be harmful to the environment. However, Option D, heavy metals, is the correct answer. Heavy metals are toxic and harmful to the environment. They can accumulate in the soil and water and cause harm to living organisms. Option E, steam and smoke, is not necessarily incorrect, but heavy metals are a more significant contributor to environmental pollution than steam or smoke. In addition to heavy metals, automobile exhaust can also release other harmful substances such as carbon monoxide, nitrogen oxides, and particulate matter. These substances can contribute to air pollution and have negative effects on human health and the environment. Therefore, it is important to reduce automobile emissions by using cleaner fuels and technologies, such as electric or hybrid vehicles, or by reducing the amount of driving we do.

Overall, the correct answer to the question is Option D, heavy metals, because they are toxic and harmful to the environment. It is important to reduce automobile emissions to decrease the amount of harmful substances released into the environment.