Reg. No.
9 5 1 7
Question Paper Code : 21164
B.E. / B.TECH. DEGREE EXAMINATIONS, MAY / JUNE 2024
Second Semester
Common to all UG Programmes
23BS205 – ENVIRONMENTAL SCIENCE AND DISASTER MANAGEMENT
(Regulations: Mepco – R2023)
Duration: 3 Hours Max. : 100 Marks
Answer ALL Questions
PART A – (10 2 = 20 Marks)
BTL, CO
R, CO1 1. Which one of the following is a critical mineral? Give reasons.
A) Ca B) Mg C) Au D) K
A, CO1 2. List the adverse effects of synthetic fertilizer usage in modern agriculture.
R, CO2 3. Development of a bare land without any life form is called as ___________. Justify
your answer.
A) Nudation B) Migration C) Invasion D) Competition
A, CO2 4. Describe any one value of biodiversity.
R, CO3 5. Air pollution from automobiles can be controlled by fitting. Justify your answer.
A) Electrostatic precipitator B) Wet collector
C) Catalytic converter D) Both (A) and (B)
A, CO3 6. List the types of carbon footprint.
R, CO4 7. Friction prevents the movement of tectonic plates, stress builds up and results in sudden
fractures along the fault lines is called as ___________. Justify your answer.
A) Flood B) Earthquake C) Landslide D) Manmade disaster
R, CO4 8. Explain the term hazard related to disaster.
R, CO5 9. Which legislation in India provides the legal framework for disaster management and
outlines the roles and responsibilities of various stakeholders? Justify your answer.
A) Disaster Management Act B) Crisis Response Act
C) Emergency Management Act D) Disaster Relief Act
A, CO5 10. List the needs of disaster management.
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PART B – (4 15 = 60 Marks)
A, CO1 11. a) Explain the causes, effects and remedial measure of deforestation. (15 Marks)
OR
A, CO1 11. b) With increasing population, there is a huge demand on exploitation of
natural resources. Apply your knowledge of environmental science, list
the steps followed by a responsible citizen for conservation of various
natural resources. (15 Marks)
U, CO2 12. a) Ecosystems are basic structure of environment. With suitable examples
discuss in detail on structure, various components and functions of each
tropic level in an ecosystem. (15 Marks)
OR
U, CO2 12. b) Discuss about the causes and issues related to different threats to
biodiversity. (15 Marks)
U, CO4 13. a) Discuss the causes of any two natural disaster and discuss its effects on
human and properties. How can mitigate the effects of natural disaster
through science and technology? (15 Marks)
OR
U, CO4 13. b) With an example explain the causes, effects and preventive measures of
man made disaster. Infer the social, economical and environmental
impacts. (15 Marks)
R, CO5 14. a) List the various steps and process involved in disaster management
cycle and analyze the post disaster environmental response. (15 Marks)
OR
R, CO5 14. b) State the objectives and significance of disaster management act. List
the roles and responsibilities of government and communities in disaster
management. (15 Marks)
PART C – (1 20 = 20 Marks)
R, CO3 15. a) Discuss briefly the various types of pollutants present in water and their
effects. (20 Marks)
OR
R, CO3 15. b) Evaluate the enforcement of environmental legislation for protection of
wildlife and conservation of forest by summarizing its objectives and
significance. (20 Marks)
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