Allergies, asthma, cough from smoking, stomach ulcer, alcoholism are the diseases caused by
A
All of the above.
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B
external harmful agents entering the body
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C
wearing out of body parts
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D
lack of trace elements in the body
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Solution
The correct option is B external harmful agents entering the body Problems caused by external harmful agents entering the body: are: Allergies, asthma, poisons, snakebite, cough from smoking, stomach ulcer, alcoholism.