ACTIVITY 2 Multiple Choice: Encircle the letter of the correct answer.

1. what is generally refers to the provision of tacities and services for the safe disposal of human urine and foeces.

a sanitation
b. environmental sanitation
C. sanilation practices

2. Type of infectious agent that lives inside the bodies of their human host, usually in the intestines. They are sometimes collectively known as helminths.

a parasitic worms
b. protozoa
C viruses

3. The simpliest member of the animal Kingdom. They are microscopic, consists of single cell and are found in water, soil and sea. Some types are beneficial but others are parasitic, causing diseases like malaria, amoeba and sleeping sickness.

a. parasitic worms
b. protozoa
c. viruses

4. How many people are infected with soil-transmitted helminths worldwide ?
a. one billion
b. two billion
c. 3 billion

5. They are very simple microscopic organisms. Pathogenic bacteria are responsible for many diseases including tuberculosis. pneumonia, typhoid and cholera.
a. protozoa
b. bacteria
c. viruses​