Agriculture Extension Level Extension March/April Past Paper Level 4
INSTRUCTIONS TO CANDIDATE This paper consists of TWO sections A and B. Answer ALL questions in sections A and B in the answer booklet provided. Marks for each question are indicated in brackets. Do not write on this question paper. Answer the questions in English. This paper consists of FOUR (4) printed pages. Candidate should check the question paper to ascertain that all the pages are printed as indicated and that no questions are missing. SECTION A (10 MARKS) Answer all questions, each question carries 1 mark 1. Among the following, choose the safest method of disposing nuclear waste. A. Use it as nuclear fuel B. Sell it to other countries C. Dump it in landfills D. Store and monitor the waste 2. ________________ is the primary benefit of wetlands. A. Promoting floods B. Filtering of water before it enters lakes, streams, rivers, or oceans C. Keeping the number of undesirable plants and animals low D. Providing good sites for landfills 3. Which one of the following is a greenhouse gas? A. Sulphur dioxide B. Oxygen C. Methane D. Nitrogen 4. Which one of the following international Conventions addresses specifically hazardous wastes? A. Vienna Convention B. Montreal convention C. Basel convention D. Stockholm convention 5. _____________ is not a basic reason for the depletion of natural resources in Kenya. A. Global warming B. Rapid population increase C. High consumption of resources D. Pollution and land deterioration 6. Which one of the following cause most challenges in urban pollution in Kenya? A. Industrial gases B. Pollution caused by Solid wastes C. Pollution caused by wastes without weight D. Pollution caused by liquid wastes 7. ______________ is the name given to the method by which solid waste is dumped in low-lying areas and then covered with earth. A. Open dumping B. Sanitary land filling C. Incineration D. Composting 8. Select from the following the correct statement regarding natural resources. A. Cannot be exhausted B. They cannot be recycled C. Non-renewable resources include air and water D. Limited in availability 9. Which one of the following gases is likely to be reduced in the atmosphere by deforestation? A. Nitrogen B. Oxygen C. Carbon dioxide D. Sulphur dioxide 10. In November 2021, there was the COP26 held in Stockholm to address the Global warming, what does the initial COP stand for? A. Coefficient of Pollution B. Coalition of Parties C. Convention of People D. Conference of Parties SECTION B (40 MARKS) Answer all questions in this section 11. State four principles of waste minimization in production process. (4 marks) 12. Outline four requirements expected of a person granted a license to transport waste. (4 marks) 13. Explain four characteristics of hazardous waste. (4 marks) 14. State four types of bio-medical wastes and their methods of disposal. (4 marks) 15. Identify four hazards found in a workshop. (4 marks) 16. Outline four steps in waste management cycle. (4 marks) 17. State the correct order of solid waste management starting with the most preferred. (4 marks) 18. Highlight four benefits of recycling E-wastes. (4 marks) 19. State four types of land use activities that must be subject to Environmental Impact Assessment (E.I.A) and zoning. (4 marks) 20. List four components of environmental systems. (4 marks)
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