I think it’s The second option sorry if I’m wrong
Answer: crest I don’t really know how to explain it but yea it’s crest
The correct answer is the second option. Particulate matter is the air pollutant known to affect people with asthma. It also can cause other illnesses like cough, chest discomfort and a burning sensation in the lungs.
It is called rust and it forms when water soaks into the metal forming a chemical reaction.
