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Envi 201:Environmental Science 3Rd Trimester 2015 Question Paper

Envi 201:Environmental Science 3Rd Trimester 2015

Course: Environmental Science

Institution: Kenya Methodist University question papers

Exam Year:2015

ENVIRONMENTAL SCIENCE (ENVI 201) 3RD TRIMESTER 2015
KENYA METHODIST UNIVERSITY

END OF 3'RD 'TRIMESTER 2015 (PT) EXAMINATION

FACULTY : EDUCATION, ARTS AND SCIENCES
DEPARTMENT : PURE & APPLIED SCIENCES
UNIT CODE : ENVI 201
UNIT TITLE : ENVIRONMENTAL SCIENCE
TIME : 2 HOURS

INSTRUCTIONS

Answer all the question in Section A and any two in section B
SECTION A: 30 MARKS

Question One

Describe three effects of acid rain on plants.
(3 Marks)
List three reasons why the world is faced with increasing pressure on water resources and widespread water shortages in Kenya.
(3 marks)
By use of diagrams describe the two models of population growth.
(4 Marks)
Question Two

State four effects of excessive air pollution to the biotic factors.
(4 Marks)
List three methods used by farmers to reduce soil erosion in their farmland.
(3 Marks)
Describe three importance of sustainable agriculture.
(3 Marks)
Question Three

Describe in general, the ways the commons can be regulated.
(4 marks)
Define what is an ecosystem and give its two major functions.
(3 Marks)
Describe three global recognizable uses of water
(3 Marks)
SECTION B: 40 MARKS

Question Four

Discuss the integrated approaches of protecting our atmosphere.
(10 marks)
Discuss the possible effects of a warmer global climate.
(10 marks)
Question Five

Dams are very important in agricultural nations but it has many environmental impacts. Discuss these impacts.
(10 marks)
Discuss five practical strategies of water conservation in Kenya.
(10 marks)
Question Six

Discuss how human-being cause extinction of biological diversity in Kenya.
(10 marks)
Discuss the major factors that brings about food insecurity.
(10 marks)

Envi 201:Environmental Science 3Rd Trimester 2015 Question Paper

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