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)
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