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Environment In Relation To Human Welfare Communicable Diseases - Questions and Answers

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6. Social agents are
A. Poverty, smoking, abuse of drugs and alcohols and unhealthy life styles
B. Various chemicals, urea and uric acid
C. Crushing, tearing and dislocation
D. Heat, cold, pressure and humidity
Explanation:
7. Nutrient agents are
A. Proteins
B. Vitamins
C. Minerals
D. All the three
Explanation:
8. Biological agents are otherwise known as
A. Nutrient agents
B. Chemical agents
C. Physical agents
D. Pathogens
Explanation:
9. Heat, cold, humidity, pressure, radiation, electricity and sound come under
A. Biological agents
B. Physical agents
C. Mechanical agents
D. Chemical agents
Explanation:
10. Crushing, tearing and dislocations come under
A. Physical agents
B. Mechanical agents
C. Social agents
D. Chemical agents
Explanation:
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