2 Answers

Genar · Answer 1 · 2020-09-22T05:23:32+0000

Answer:

Three pollutants that have decreased the most since 1990 are lead, sulfur dioxide, and oxides of nitrogen.

Step-by-step explanation:

Adamlamar · Answer 2 · 2020-09-23T04:42:21+0000

Hi !

Name the 3 pollutants that have decreased the most since the 1990

Answer:

- lead,

- sulfur dioxide (SO2)

- oxides of nitrogen (NOx).

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