I would have to say the answer is C.
A is incorrect since hydrogen is not an air pollutant.
B is incorrect because ozone is most definitely one of the top.
And D has cyanide which is a chemical for suicide during wars.
Hope this helps!
I would say either a or b because when dealing with stress you want to reflect on things you’ve done in the past and see how they resulted, but then it also helps to have the ability to laugh at yourself because it can make the situation less stressful. Hope that helped a little
B. astigmatism is the best answer, it definitely gives distorted images.
Nearsightedness is where you can't see things clearly unless they are really close up to the eyes. Farsightedness is where you can see things better the farther off, but both of those may still leave you seeing blurry. Sclera is just part of they eyeball, the outer white layer.
Probably some type of pain killers.
