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ENVIRONMENTAL POLLUTION

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WEEK SEVEN
ENVIRONMENTAL POLLUTION
Environmental Pollution is the release of contaminated and harmful substances and materials
into the surroundings which affect living things negatively. Pollution occurs to air, water and
land. Pollution is the contamination of fresh and pure air, land and water with impurities. It is
the release of unwanted substances into the surrounding.
Pollution is undesirable state of the natural environment being contaminated with harmful
substances as a consequence of human activities. This is also the addition of substances or
forms of energy to the environment at a rate faster than the environment can accomodate.
Types of Pollution
1. Air pollution
2. Water pollution
3. Land pollution
4. Noise pollution
Others include
5. Visual pollution
6. Thermal pollution
7. Radioactive pollution
Evaluation
1. What is pollution?
2. Mention the types of pollution.
Air Pollution – This is the release of harmful and unwanted substance into the air. It is the
addition of pollutants into the atmosphere.
Water Pollution – This is the contamination of water bodies (streams, lakes, underground
water, bays, and oceans) by substances harmful to life.
Land Pollution- This is the deposition of solid wastes that cannot be broken down easily on land
which affects its productivity. The solid wastes can be used car, cans, broken bottles, plastic
containers, etc.
Noise Pollution – This is the release of unpleasant sound in the environment, annoying and
potentially harmful sound in the environmental.
Sources of Pollution
 Oil spillage
 Gasses from vehicles and automobile engines
 Cigarette smoking
 Industrial and factory waste
 Bush burning
 Refuse and sewage disposal
 Erosion
 War disaster
 Noise
Evaluation
1. List and explain the sources of pollution.
2. What is sewage?
General Evaluation
1. Define “Environmental Pollution”.
2. List the types of pollution.
3. Explain water pollution.
4. What are pollutants?
5. Mention three examples of land pollutants.
Reading Assignment
Read page 71 of Essentials Physical and Health Education for junior secondary school 2.
Practise page 26 of Physical and Health Education Workbook for Junior Secondary School 2
Weekend Assignment
1. The presence of over-head power lines, motorway bill-boards is called ______ (a)air
pollution (b)thermal pollution (c)noise pollution (d)visual pollution.
2. The release of chemicals and particles into the atmosphere is called ______ (a)air pollution
(b)land pollution (c)noise pollution (d)visual pollution
3. The type of hazardous pollution caused by automobile is ______ (a)carbon dioxide
(b)carbon monoxide (c)hydrogen (d)oxygen.
4. Bush burning is a type of _______ pollution. A. land B. sea C. Gaseous D. water
5. Carbon monoxide is a ______ kind of pollution. A. air B. land C. sea D. all of the above.
Theory
1. List the type of pollutants in your area.
2. Describe the types of pollution.
Reference Text
Essentials of Physical and Health Education for Junior Secondary School 2.
Physical and Health Education Workbook for Junior Secondary School 1, 2 & 3

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