1/4=.25. Like 25% of 100.
Answer;
D.
Coal-fired stoves, factories, and power plants
Explanation;
-Air pollution from factories and coal-fired power plants includes sulfur dioxide, nitrogen oxides, particulate matter (PM), and heavy metals, leading to smog, acid rain, toxins in the environment, and numerous respiratory, cardiovascular, and cerebrovascular effects.
Complementary and adjacent
