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!
Has no relevant concern to psychology, I believe is your answer.
A system in which medical doctors and other healthcare professionals (such as nurses, pharmacists, and therapists) treat symptoms and diseases using drugs, radiation, or surgery. Also called allopathic medicine, biomedicine, conventional medicine, mainstream medicine, and orthodox medicine.
Answer:
It requires the learner to find similarities and themes in the training material
Explanation:
As defined by Schumaker & Deshler, learning strategy is an individual's way of organizing and using a particular set of skills in order to learn content or accomplish other tasks more effectively and efficiently in school as well as non-academic settings. Organizational learning strategy involves the learner combing through the learning material seeking for similarities. He then uses these similarities to learn about the subject