Briefly discuss how competition has impacted service delivery in the airline environment. Refer to your own knowledge of airline alliances in your discussion. (15) 2. This question is based on learning unit 8. Which aviation responses can be used by the South African government to combat local environmental problems? (15) 3. Briefly discuss the concepts of ecology and waste management with reference to the South African airline industry. (10) 4. Explain the importance of implementing ecology and waste management processes to protect the environment. (10) 5. Discuss the socio-economic characteristics of air travel. (10)