Carcinogens is __________ types of chemicals.
Correct answer: A. Cancer causing
- A. Cancer causing
- B. Pneumonia causing
- C. Emphysema
- D. Asthma
Explanation
Carcinogens are chemical or physical agents that can cause cancer by damaging DNA or disturbing the control of cell division. Pneumonia, emphysema and asthma are diseases or conditions, not meanings of the word carcinogen. Students may choose emphysema because it is strongly associated with smoking, but a carcinogen refers to a cancer-causing agent.
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