Week 3 – Jss 1 Second Term Basic Science Lesson Notes

 WEEK THREE
ENVIRONMENTAL POLLUTION II

• Consequences of pollution
• Control measures of pollution

 CONSEQUENCES OF POLLUTION
Effects of air pollution

1. It can lead to respiratory diseases (when smoke, soot and dust is inhaled)
2. Smog can reduce visibility and cause respiratory diseases
3. High concentration of carbon (ii) oxide can cause brain damage
4. It can cause cancer

Effects of soil pollution

1. Ill-health to man and terrestrial animals
2. Stunted growth in plants
3. Barrier to water passage
4. Changes in soil structure
5. Offensive odour

Effects of water pollution

1. Untreated sewage in water causes diseases such as cholera, dysentery etc.
2. It leads to the death of aquatic animals
3. Offensive odour
4. Oil spillage destroys farm land
5. Pesticides and herbicides makes the water poisonous
6. Fertilizers can lead to overgrowth of aquatic plants which blocks water way
7. Taking in radioactive wastes can bring about genetic mutation

CONTROL MEASURES OF POLLUTION
Control of air pollution

1. Locating industries far from human habitation
2. Educating people on the dangers of air pollution
3. Keeping houses well ventilated
4. Using tall chimneys to discharge waste gases high up in the sky
5. Burning of refuse in incinerators

Control of soil pollution

1. There should be refuse recycling
2. Organic fertilizers should be used effectively not excessively used
3. Government should create an avenue for proper refuse and sewage disposal

Control of water pollution

1. Proper disposal of sewage
2. Refuses can be buried
3. Oil spillage should be prevented
4. Sewage should be converted fertilizers
5. Educating the public on the danger of water pollution
6. Fishing with chemicals should be discouraged
7. Oil pipeline vandalisation should be curbed.

 CLASSWORK 3

1. Highlight three control of air pollution
2. Enumerate two effects of water pollution

ASSIGNMENT 3
SECTION A

1. Which of this is a cause of water pollution (a) oil pipeline vandalization (b) weathering (c) erosion (d) rainfall
2. Which of these is not a control of soil pollution (a) There should be refuse recycling (b) effective fertilizer use (c) proper refuse and sewage disposal (d) urinating in the toilet
3. Educating the public on the danger of pollution can bring about a control of pollution (a) true (b) not sure (c) false (d) don’t agree
4. Which of these animals is not effect when there is water pollution? (a) crabs (b) crayfish (c) fish (d) none of the above
5. The following are causes of water pollution except (a) feaces (b) oxygen (c) sewage (d) agricultural waste

SECTION B

1. State three control of soil pollution
2. Enumerate three effect of air pollution