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Nar0141:Ecology And Environmental Science Question Paper

Nar0141:Ecology And Environmental Science

Course:Diploma In Agriculture

Institution: Meru University Of Science And Technology question papers

Exam Year:2013

QUESTION ONE - (30 MARKS)
(a) Explain how rainfall affects the distribution of vegetation. (2 Marks) (b) Define the following ecological concepts: (i) Ecosystem (ii) Biosphere (4 Marks) (c) State and explain the role of each tropic level in the food chain. (4 Marks) (d) Describe five causes of human overpopulation. (10 Marks) (e) Discuss five methods of solid waste disposal. (10 Marks)
QUESTION TWO – (15 MARKS)
(a) Discuss the factors that limit population growth. (8 Marks) (b) Illustrate using a graph and explain the phases of population growth. (7 Marks)
QUESTIONTHREE – (15 MARKS)
Discuss five main causes of environmental degradation. (15 Marks)
QUESTION FOUR – (15 MARKS)
(a) Describe three energy sources considered as environmentally friendly. (6 Marks) (b) Discuss the impact of pollution on the environment. (9 Marks)
QUESTION FIVE – (15 MARKS)
Discuss the various agricultural practices that promote environmental conservation.
(15 Marks)

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