ENVIRONMENTAL HAZARD
- BUSH BURNING
                      WALT:
•   Define bush burning,
•   Mention human activities that influence
    bush burning,
•   outline the effects of bush burning,
•   State regulations against bush burning.
             BUSH BURNING
• This s the act of setting forests, weeds and
  grasses on fire.
• Fire destroys ground cover which protects the
  soil, organic matter and soil organisms. This
  affects the soil structure adversely.
• Bush burning may be accidental or deliberate.
    HUMAN ACTIVITIES THAT INFLUENCE BUSH
                 BURNING
•   Hunting
•   Farming
•   Construction
•   By accidents: carelessly disposing of cigarette
    stumps or burnt debris without putting out
    the fires completely.
      EFFECTS OF BUSH BURNING
• It spreads rapidly and can destroy economic crops.
• It exposes the soil to erosion which wash away soil
  nutrient.
• Uncontrolled bush burning may lead to loss of valuable
  properties.
• Bush burning and forest fire leads the destruction of
  wildlife.
• It is a major source of air pollution.
• It contributes to the depletion of the ozone layer.
• It lead to loss of soil nutrients.
  REGULATION OF BUSH BURNING
The burning of bushes can be controlled through the following ways:
1. Establishment of agencies to control, prevent and monitor bush
   burning in Nigeria. Some of these agencies include; Federal
   Environmental protection agency (FEPA), National Forest
   Conservation Council of Nigeria (NAFCON)
2. Ministries of environment should control and regulate
   environmental activities that may cause disaster.
3. Laws should be enacted by the government to control bush
   burning.
4. Agencies should educate the masses about the effects of bush
   burning.
5. Mass media should be used to enlighten people on how to control
   bush burning.
             CLASS ACTIVITY
• What is bush burning?
• List five methods of controlling bush burning.
• State five effects of bush burning
             HOMEWORK
• Basic Science workbook, pages…………….
               DEFORESTATION
                         WALT:
•   Define of Deforestation
•   Outline the causes of Deforestation
•   State the effects of Deforestation
•   Explain the control of Deforestation
             DEFORESTATION
• Deforestation is the continuous removal of
  trees without replacing or replanting them.
  Deforestation is also the permanent
  destruction of forest in order to make land
  available for other uses.
      CAUSES OF DEFORESTATION
1. Removal of trees to make land available for the
   construction of roads, building of houses and industries,
   recreational centres and so on.
2. Indiscriminate logging by poachers for industrial purposes
   like the production of paper, furniture, sculptures etc.
3. Felling of trees to make wood available for domestic
   purposes like cooking.
4. Burning of forest for hunting and farming.
5. Natural causes like forest fire during thunderstorm or
   landslides can also lead to loss of forest trees.
      EFFECTS OF DEFORESTATION
• It leads to the loss of wildlife and biodiversity.
• It contributes to climatic change and increase in global
  warming.
• It lead to the loss of habitat of so many species of animals
  especially birds.
• It lead to decrease in atmospheric oxygen and increase in
  CO2. This means that plants and animals are in danger
  because there will less oxygen to breathe in.
• It leads to flooding and erosion.
• It may lead to economic loss if forest raw materials are no
  longer available for industry to use or export.
  WAYS TO CONTROL DEFORESTATION
1. Afforestation: This is the planting of trees in places where they
   are not planted before. Afforestation helps to bring forest
   condition to places where they do not exist before. An example of
   afforestation is the "Plant A Tree" initiative.
2. Reforestation: This is the replanting of trees to replace those
   trees that have been removed from the forest.
3. Governments should establish game reserves.
4. Government should make laws against indiscriminate poaching
   and logging.
5. Government should make laws against bush burning.
6. The use of forest guards to keep trespassers away from the
   forest.
7. Public should be educated on the dangers of deforestation
CLASS ACTIVITY