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Environmental Science C(Envi 201) 1St Trimester 2016 Question Paper

Environmental Science C(Envi 201) 1St Trimester 2016

Course:Bachelor Of Education

Institution: Kenya Methodist University question papers

Exam Year:2016

Environmental science c(ENVI 201) 1st trimester 2016
END OF 1'st 'TRIMESTER 2016 (SCHOOL-BASED) 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. Define the term "Tragedy of Commons" and state two tragedies associated with the following global commons: Hydrosphere and Atmosphere [3 Mark]
b. Describe three primary sources of atmospheric pollution in Kenya (3 Marks)
What is a wetland and describe three consequences of wetland destruction
(4 Marks)

2a. Currently, Kenya is faced with serious deforestation. Explain any three major consequences of this deforestation (3 marks)
b. State four reasons why the current sources of energy in the world are considered unsustainable? (3 marks)
c. Explain four most effective approaches of regulating the commons (4 marks)

3a. Describe three main problems associated with agricultural ecosystems (3 Marks)
b. Explain four effects global warming on agriculture in Kenya [4 Marks]
c. Explain the three major changes in food production associated with the Green Revolution (3 Marks)

SECTION B – 40 Marks

Answer any two questions

4a. State the worldview associated with each of these societies and explain how they affected their environment:]
Hunter-Gatherers societies
[3 Marks
Agricultural societies
[4 Marks
Industrial-Scientific societies
[5 Marks
Explain four man-made causes of extinction of wildlife in Kenya. (8 Marks)
5a. Currently, Kenya is gearing in water dam construction for water harvesting and storage. Discuss six consequences of constructing such dams along the rivers. (12 Marks)
Recycling is the reprocessing of discarded materials into new, useful products. Explain four benefits your county government achieve by recycling its waste materials
(8 Marks)

6a. "The stratospheric ozone layer is essential to life on earth" Discuss (10 Marks)
Discuss "Biodiversity is significant to human society"
(10 marks)
Categories: Environmental science | (ENVI 201) | 1st trimester 2016
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Environmental Science C(Envi 201) 1St Trimester 2016 Question Paper

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