Answer:
yes of course they have always been able to do it
The answer is I guess C.perform atleast moderate intensity exercise each week.
The answer to you'r question is true
I dont know if this has multiple choice answers but im going to answer this in my own words. Usually noise pollution is caused by loud things like planes, construction machines, etc. If you live near by a airport you are more likely to get infected by noise pollution. If you work by a construction machines you are more likely going to get affected by noise pollution thats why construction workers wear helmets and sometimes earplugs
hope this helped