Observation

Many candidates were able to answer this question satisfactorily although some of them answered the question vaguely.

The expected answers are:

1. Definition of land pollution:
   • - Is the destruction/deterioration of the earth’s surfaces directly or indirectly.
   • - As a result of man’s activities/ misuse of land resources/ natural occurrence.


2. Causes of land pollution
   • - agricultural practices/use of chemical.
   • - bush burning/deforestation
   • - mining
   • - human sewage
   • - industrial /factory discharge
   • - soil erosion/ landfills/ construction work
   • - illegal refuse dump
   • - lack of drainage on the road sides/at home
   • - urbanization


3. Effects of land pollution
   • - offensive sights/odour
   • - breeding ground for insects/animals
   • - release of toxic materials into soil
   • - can cause injuries/accident
   • - renders soil infertile/destroys soil texture
   • - contamination of well water/ underground water
   • - disease spread.
   • - disruption of food chain
   • - global warming