Question

a radio announcement advises people to boil their water before drinking it or cooking with it. which of the following best explains why a health services department would broadcast this announcement?
a. it wants to help prevent the spread of communicable diseases through contaminated water.
b. it wants to regulate how water is used to ensure that it is not wasted.
c. it wants to help people prevent the spread of communicable diseases through contaminated food.
d. it wants to help people recover from an illness by drinking clean, safe water.

Explanation:

• Option A: Boiling water kills pathogens (such as bacteria, viruses, and parasites) that can cause communicable diseases. If water is contaminated, these pathogens can spread diseases when people drink or cook with the water. This option directly addresses the purpose of boiling water (related to water -borne communicable diseases).
• Option B: The announcement is about boiling water for drinking or cooking, not about water - wasting regulation. The focus is on health (disease prevention) rather than water conservation.
• Option C: The announcement specifically mentions boiling water before drinking or cooking with it. The main concern is water (not food) contamination. While contaminated water used in cooking can contaminate food, the primary medium in question here is water.
• Option D: Boiling water is a preventive measure (to stop the spread of diseases from contaminated water) rather than a measure to help recovery from an illness.

Answer:

A. It wants to help prevent the spread of communicable diseases through contaminated water.