Self-Assessment Questions (SAQs) for Study Session 18

Now that you have completed this study session, you can assess how well you have achieved its Learning Outcomes by answering these questions. Write your answers in your Study Diary and discuss them with your Tutor at the next Study Support Meeting. You can check your answers with the Notes on the Self-Assessment Questions at the end of this Module.

SAQ 18.1 (tests Learning Outcome 18.1)

The Glossary Game: Write down each of the key words printed in bold in this study session. Cut the paper into strips, with one word on each strip; fold them and put them into a bowl. Take a strip, read the word and write a definition in your Study Diary. Then check your definition with those in the study session.


This game is intended to familiarise you with the technical terms you will meet again in subsequent study sessions. To find the right answer, you can check the definition written in your own words with that in the study session.

SAQ 18.2 (tests Learning Outcome 18.2)

Waste can be categorised as solid or liquid, and as hazardous or non-hazardous. Give an example of a:

  1. solid non-hazardous waste
  2. liquid non-hazardous waste
  3. solid hazardous waste
  4. liquid hazardous waste.


You may have come up with different suggestions but we thought of these examples:

  • vegetable peelings and waste from food preparation
  • water that has been used to wash clothes
  • used dressings and bandages from the Health Post
  • diesel fuel leaking from a damaged can.

SAQ 18.3 (tests Learning Outcome 18.2)

What is the main purpose of waste management?


The main purpose of waste management is to isolate waste from humans and the environment, and protect human health.

SAQ 18.4 (tests Learning Outcome 18.3)

Outline three benefits for public health that can be provided by proper waste management.


There are many public health benefits including prevention of faeco-orally transmitted diseases, reduction in public nuisance from wastes in the environment, creation of a more aesthetically pleasant environment, and the possibilities of generating income from creating economically valuable products from the treatment, recycling and reuse of waste.

SAQ 18.5 (tests Learning Outcome 18.4)

Match the sources of waste with the types of solid waste below.

Using the following two lists, match each numbered item with the correct letter.

  1. Manures

  2. Packaging materials, plastics

  3. Needles and other sharps

  4. Coffee bean shells

  • a.Coffee processing

  • b.Agricultural

  • c.Healthcare

  • d.Commercial

The correct answers are:
  • 1 = b
  • 2 = d
  • 3 = c
  • 4 = a

Summary of Study Session 18