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E1248 Pages: 2

APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
FIFTH SEMESTER B.TECH DEGREE EXAMINATION(S), MAY 2019

Course Code: CE371
Course Name: ENVIRONMENT AND POLLUTION

PARTA
Answer any two full questions; each carries 15 marks.
How do the carbon levels in the environment maintain a rough stability without
human influence?
What are the main causes for the increase in environmental pollution of today’s
world?
Enlist the basic requirements for maintaining a healthy environment.
How do suspended particulate matters present in air affect human beings, plants
and materials?
What is photochemical smog? How it is formed and what are its impacts?
How does the stack gases from a thermal power plant located on the sea coast
behave during day and night time?
What is an ecosystem? What are its components?
What is meant by biogeochemical cycling of materials? Give the various stages
of nitrogen cycle.
Enlist the different source correction methods used by industries to control air
pollution
Differentiate between (i) radiation inversion and subsidence inversion
(ii) primary air quality standard and secondary air quality standard
PART B
Answer any two full questions; each carries 15 marks.
Synthetic organic compounds are considered as water pollutants. What are the
adverse impacts of these compounds on aquatic ecosystem?
Give the source and impact of the following heavy metals in aquatic ecosystem.
(i) lead (ii) cadmium and (iii) mercury
What are waterborne diseases? Give any three causative agents with the diseases

caused.

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Duration: 3 Hours

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