Envi 201: Environmental Science Question Paper
Envi 201: Environmental Science
Course: Environmental Science
Institution: Kenya Methodist University question papers
Exam Year:2019
END OF 1st TRIMESTER 2020(FULL-TIME) EXAMINATION
FACULTY : SCIENCE AND TECHNOLOGY
DEPARTMENT : PURE AND APPLIED SCIENCES
UNIT CODE : ENVI 201
UNIT TITLE : ENVIRONMENTAL SCIENCE
TIME : 2 HOURS
INSTRUCTIONS
• Answer All Questions in section A and any two questions from section B.
SECTION A: 30 Marks - Answer ALL the questions
1a. Describe any three long term problems associated with industrialized agriculture (3 Marks)
b. Explain the significance of the ozone layer in the atmosphere to life on earth? (3 marks)
c. Describe four effects of excessive air pollution on plants (4 Marks)
2a. Name three greenhouse gases and state one major anthropogenic source for each. (3 marks)
b. State three reasons why the current sources of energy in the world are considered to be unsustainable? (3 marks)
c. Explain the effects of human overpopulation on health (4 Marks)
3a. State the ecological definition of environment and describe types of natural environments (3 Marks)
b. Describe any four consequences of overdrawing of water surface and underground water (3Marks)
c. State four ways of regulating the commons (4 marks)
Section B – 40 Marks) - Answer any two questions
4a. Explain five significances of biological diversity. (10 marks)
b. Explain five practical ways how municipal water demands can be reduced (10 Marks)
5a. Define deforestation and discuss four human activities that are causing deforestation in Kenya (10 marks)
b. Discuss five practical ways to control the current water pollution in Kenya. (10 Marks)
6a. Explain food insecurity and eight of food insecurity in Kenya.
(10 Marks)
b. Explain five ways by which various countries using to control extinction of wildlife. (10 marks)
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