Water and Public Health

Description: This quiz will test your knowledge on the topic of Water and Public Health.
Number of Questions: 15
Created by:
Tags: water law public health water quality
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What is the primary source of drinking water for most people in the world?

  1. Surface water

  2. Groundwater

  3. Rainwater

  4. Desalinated water


Correct Option: B
Explanation:

Groundwater is the primary source of drinking water for most people in the world, accounting for about 30% of all freshwater withdrawals.

What is the maximum allowable concentration of lead in drinking water, according to the World Health Organization (WHO)?

  1. 10 µg/L

  2. 15 µg/L

  3. 20 µg/L

  4. 25 µg/L


Correct Option: A
Explanation:

The WHO has set a maximum allowable concentration of lead in drinking water of 10 µg/L (micrograms per liter).

Which waterborne disease is caused by the bacterium Vibrio cholerae?

  1. Typhoid

  2. Dysentery

  3. Cholera

  4. Hepatitis A


Correct Option: C
Explanation:

Cholera is a waterborne disease caused by the bacterium Vibrio cholerae.

What is the primary chemical used for disinfection of drinking water?

  1. Chlorine

  2. Fluoride

  3. Bromine

  4. Ozone


Correct Option: A
Explanation:

Chlorine is the primary chemical used for disinfection of drinking water due to its effectiveness and low cost.

What is the process of removing salt from seawater to make it suitable for drinking?

  1. Distillation

  2. Reverse osmosis

  3. Ion exchange

  4. Electrodialysis


Correct Option: B
Explanation:

Reverse osmosis is the most widely used process for desalination of seawater.

Which waterborne disease is caused by the protozoan Giardia lamblia?

  1. Cryptosporidiosis

  2. Giardiasis

  3. Amebiasis

  4. Toxoplasmosis


Correct Option: B
Explanation:

Giardiasis is a waterborne disease caused by the protozoan Giardia lamblia.

What is the maximum allowable concentration of fluoride in drinking water, according to the WHO?

  1. 1.0 mg/L

  2. 1.5 mg/L

  3. 2.0 mg/L

  4. 2.5 mg/L


Correct Option: B
Explanation:

The WHO has set a maximum allowable concentration of fluoride in drinking water of 1.5 mg/L (milligrams per liter).

Which waterborne disease is caused by the bacterium Salmonella typhi?

  1. Typhoid

  2. Dysentery

  3. Cholera

  4. Hepatitis A


Correct Option: A
Explanation:

Typhoid is a waterborne disease caused by the bacterium Salmonella typhi.

What is the process of removing impurities from water by passing it through a series of filters?

  1. Distillation

  2. Reverse osmosis

  3. Filtration

  4. Ion exchange


Correct Option: C
Explanation:

Filtration is the process of removing impurities from water by passing it through a series of filters.

Which waterborne disease is caused by the virus Hepatitis A virus?

  1. Typhoid

  2. Dysentery

  3. Cholera

  4. Hepatitis A


Correct Option: D
Explanation:

Hepatitis A is a waterborne disease caused by the virus Hepatitis A virus.

What is the maximum allowable concentration of arsenic in drinking water, according to the WHO?

  1. 10 µg/L

  2. 15 µg/L

  3. 20 µg/L

  4. 25 µg/L


Correct Option: A
Explanation:

The WHO has set a maximum allowable concentration of arsenic in drinking water of 10 µg/L (micrograms per liter).

Which waterborne disease is caused by the bacterium Shigella dysenteriae?

  1. Typhoid

  2. Dysentery

  3. Cholera

  4. Hepatitis A


Correct Option: B
Explanation:

Dysentery is a waterborne disease caused by the bacterium Shigella dysenteriae.

What is the process of removing salt from seawater by freezing and then melting the ice?

  1. Distillation

  2. Reverse osmosis

  3. Freezing

  4. Electrodialysis


Correct Option: C
Explanation:

Freezing is a process of desalination of seawater by freezing and then melting the ice.

Which waterborne disease is caused by the protozoan Cryptosporidium parvum?

  1. Cryptosporidiosis

  2. Giardiasis

  3. Amebiasis

  4. Toxoplasmosis


Correct Option: A
Explanation:

Cryptosporidiosis is a waterborne disease caused by the protozoan Cryptosporidium parvum.

What is the maximum allowable concentration of nitrate in drinking water, according to the WHO?

  1. 10 mg/L

  2. 15 mg/L

  3. 20 mg/L

  4. 25 mg/L


Correct Option:
Explanation:

The WHO has set a maximum allowable concentration of nitrate in drinking water of 50 mg/L (milligrams per liter).

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