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Envi 201:Environmental Science 1St Trimester 2016 Question Paper

Envi 201:Environmental Science 1St Trimester 2016

Course: Environmental Science

Institution: Kenya Methodist University question papers

Exam Year:2016

Environmental science b(ENVI 201) 1st trimester 2016
END OF 1'st 'TRIMESTER 2016 (PART-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. Deforestation is one environmental problem Kenya is facing. Describe any three consequences of this forest destruction. (3 marks)
Describe three actions that the American government took on the realization that their natural wilderness, species and resources were limited and not infinite as believed to be. (3 Marks)
State four major ways of regulating the commons (4 marks)
2a. Sate any two chemical compounds that were primarily responsible for the thinning of the stratospheric ozone layer witnessed in late 1970s and state one source of each of these chemical. (2 marks)
b. Some scientists believe that life on earth did not develop until after the ozone layer was in place, indicating that the ozone layer may be essential to life on earth. State any four major reasons for this belief. (4 Marks)
Describe four impacts of global warming on agriculture as witnessed in Kenya today [4 Marks]
3a. Explain why parents in industrializing nations continue to have many children (3 Marks).
b. Describe any four factors that contribute to human population decline (4 marks)
Using a well-labeled diagram, illustrate the structure and the temperature profile of the atmosphere. [3 marks]
SECTION B – 40 Marks - '''Answer any two questions

4a. Explain how introduction of exotic invasive species has caused extinction of wildlife species (6 Marks)
b. Explain why we should care about wildlife species extinctions (10 Marks)
c. Describe four major problems associated with soil erosion in the natural environment as result of industrialized agriculture (4 Marks)

5a. Explain why are the current sources of energy in the world considered to be unsustainable? (4 marks)
Give a brief account for the high equatorial rainfalls and the location of major world deserts. (6 marks)
c. Explain five methods of slowing down global warming (10 marks)

6a. Explain any five major environmental impacts of hydropower dams in Kenya (10 marks)
b. Explain the various strategies being put in place achieve an integrated atmospheric protection (10 marks)
Categories: Environmental science | (ENVI 201) | 1st trimester 2016

Envi 201:Environmental Science 1St Trimester 2016 Question Paper

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