Question

how is noise pollution best described? airborne chemicals an unpleasant scent or smell unwanted or disruptive sound

Explanation:

To determine the best description of noise pollution, we analyze each option:

• "airborne chemicals" refers to air pollution involving chemical substances, not noise.
• "an unpleasant scent or smell" pertains to odor or air pollution related to smell, not noise.
• "unwanted or disruptive sound" aligns with the definition of noise pollution, as noise is characterized by sound that is unwanted, disruptive, or harmful.

Answer:

unwanted or disruptive sound