Overview
Define desertification and its effects; Identify geographical zones prone to desertification; Describe different human practices that lead to desertification; Identify various methods for the control of desertification; Identify where ozone layer is located in the atmosphere; State the importance of ozone layer; State the hazard of depletion of ozone layer to life on earth; Mention control measures against depletion.
What you'll learn
- Desertification:
- - definition;
- - geographical area;
- - causes such as overgrazing, bush burning, cutting trees for firewood, etc.
- - control Measures.
- Depletion of ozone layer and its effects:
- - description of the
- - ozone layer and it location in the atmosphere
- - importance of Ozone layer
- - effect of depletion of ozone layer e.g. global warming, greenhouse effect, ice melting and flooding
- Control measure
- - regulation on use of chlorofluorocarbon (CFC);
- - reduce bush burning, and control burning in house hold activities.