Back to Course

JSS1: BASIC SCIENCE - 1ST TERM

0% Complete
0/0 Steps
  1. Introduction to Science | Week 1
    4Topics
    |
    1 Quiz
  2. Family Health | Week 2
    6Topics
    |
    1 Quiz
  3. Family Health (Sanitation) | Week 3
    4Topics
    |
    1 Quiz
  4. Family Health (Nutrition) | Week 4
    8Topics
    |
    1 Quiz
  5. Drug and Substance Abuse | Week 5
    3Topics
    |
    1 Quiz
  6. Environmental Pollution: Air Pollution | Week 6
    3Topics
  7. Soil pollution | Week 7
    2Topics
  8. Water Pollution | Week 8
    4Topics
    |
    1 Quiz
Lesson Progress
0% Complete

Wastes are unwanted material in our environment. Wastes are classified into:

i. Refuse or solid wastes.

ii. Sewage or wet wastes.

Refuse:

Refuse is household solid/dry waste which includes waste papers, plastic, plant remains, textile material metals, rubber, etc. Refuse can be classified into two namely:

1. Biodegradable Refuse: Which can be broken down or decay, for example, remains of plants and animals, yam peels, banana peels, etc They are organic in nature.

2. Non-biodegradable Refuse: Cannot be broken down or may take a very long time for it to be broken down, for example, tires, tire tubes, broken bottles, plastics, etc.

refuse

Sewage:

Sewage is a liquid or wet waste, for example, faeces, urine, wastewater from the toilet and kitchen, etc.

sewage

back-to-top
error: