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Question (31)

QN003171

A child with severe iron deficiency may experience

(A) Improved vision
(B) Weakness and fatigue
(C) Strong immunity only
(D) Faster growth only

Correct Answer: B

Explanation:

Iron deficiency can cause weakness and fatigue.

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Question (32)

QN003172

Which disease below is caused due to iodine deficiency?

(A) Goitre
(B) Scurvy
(C) Rickets
(D) Beriberi

Correct Answer: A

Explanation:

Iodine deficiency causes goitre.

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Question (33)

QN003173

A community recorded 200 cholera cases before clean water supply and 50 cases after improvement. What is the percentage reduction in cases?

(A) 25%
(B) 50%
(C) 75%
(D) 80%

Correct Answer: C

Explanation:

Reduction = 200 − 50 = 150; Percentage reduction = (150/200) × 100 = 75%.

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Question (34)

QN003174

Which disease is transmitted mainly through contaminated air droplets?

(A) Tuberculosis
(B) Malaria
(C) Cholera
(D) Goitre

Correct Answer: A

Explanation:

Tuberculosis spreads through air droplets.

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Question (35)

QN003175

Which of the following diseases is NOT caused by pathogens?

(A) Cholera
(B) Malaria
(C) Diabetes
(D) Dengue

Correct Answer: C

Explanation:

Diabetes is a non-communicable disease.

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Question (36)

QN003176

A person with Vitamin A deficiency may have difficulty in

(A) Hearing
(B) Night vision
(C) Digestion
(D) Breathing

Correct Answer: B

Explanation:

Vitamin A deficiency affects night vision.

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Question (37)

QN003177

Which factor mainly increases the spread of mosquito-borne diseases?

(A) Clean surroundings
(B) Covered water tanks
(C) Stagnant water
(D) Balanced diet

Correct Answer: C

Explanation:

Stagnant water allows mosquitoes to breed.

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Question (38)

QN003178

A school survey shows that 40 out of 100 students consume excessive junk food regularly. Which disease risk is most likely higher among these students?

(A) Malaria
(B) Cholera
(C) Obesity
(D) Tuberculosis

Correct Answer: C

Explanation:

Excessive junk food increases obesity risk.

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Question (39)

QN003179

Which of the following best describes a pathogen?

(A) A nutrient required for health
(B) A disease-causing organism
(C) A type of exercise
(D) A healthy habit

Correct Answer: B

Explanation:

Pathogens are organisms that cause diseases.

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Question (40)

QN003180

A person develops illness due to both unhealthy diet and lack of physical activity. This disease is most likely classified as a

(A) Water-borne disease
(B) Air-borne disease
(C) Lifestyle disease
(D) Vector-borne disease

Correct Answer: C

Explanation:

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Question (31)

A child with severe iron deficiency may experience

Explanation:

Link:

Question (32)

Which disease below is caused due to iodine deficiency?

Explanation:

Link:

Question (33)

A community recorded 200 cholera cases before clean water supply and 50 cases after improvement. What is the percentage reduction in cases?

Explanation:

Link:

Question (34)

Which disease is transmitted mainly through contaminated air droplets?

Explanation:

Link:

Question (35)

Which of the following diseases is NOT caused by pathogens?

Explanation:

Link:

Question (36)

A person with Vitamin A deficiency may have difficulty in

Explanation:

Link:

Question (37)

Which factor mainly increases the spread of mosquito-borne diseases?

Explanation:

Link:

Question (38)

A school survey shows that 40 out of 100 students consume excessive junk food regularly. Which disease risk is most likely higher among these students?

Explanation:

Link:

Question (39)

Which of the following best describes a pathogen?

Explanation:

Link:

Question (40)

A person develops illness due to both unhealthy diet and lack of physical activity. This disease is most likely classified as a

Explanation:

Link:

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