Question

which of the following is a source of pollution in the environment? a. acid rain b. fumes from cars c. smoke from factories d. all of these

Explanation:

• Option A: Acid rain is a result of air pollution (from sources like car fumes and factory smoke) and itself causes environmental damage, so it is a form of pollution.
• Option B: Fumes from cars contain pollutants like nitrogen oxides and particulate matter, contributing to air pollution.
• Option C: Smoke from factories releases pollutants such as sulfur dioxide, particulate matter, and heavy metals, causing environmental pollution.
• Since A, B, and C are all sources or forms of environmental pollution, the correct answer is D.

Answer:

D. all of these