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NCERT Exemplar Solutions Class 7 Science Solutions for Wastewater Story - Exercise in Chapter 18 - Wastewater Story

Question 16 Wastewater Story - Exercise

Water polluted by various human activities causes a number of water-borne diseases. Which of the following is not a water-borne disease?

(a) Cholera

(b) Typhoid

(c) Asthma

(d) Dysentry

Answer:

The answer is (c) Asthma.

Explanation:

Asthma is airborne disease whereas Cholera, Typhoid and dysentery are spread by contaminated water and food.

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