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ENP811S - ENVIRONMENT PHYSICS - 1ST OPP - JUNE 2023 |
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nAmI BIAunIVE Rs ITY
OF SCIEnCE Ano TECHnOLOGY
FACULTYOF HEALTH,NATURALRESOURCESAND APPLIEDSCIENCES
SCHOOLOF NATURALAND APPLIEDSCIENCES
DEPARTMENT OF BIOLOGY,CHEMISTRYAND PHYSICS
QUALIFICATION: BACHELOROF SCIENCEHONOURS
QUALIFICATIONCODE: 08BOSH
LEVEL: 8
COURSE:ENVIRONMENT PHYSICS
COURSECODE: ENP811S
SESSION:JUNE 2023
DURATION: 3 Hours
PAPER:THEORY
MARKS: 100
FIRSTOPPORTUNITY EXAMINATION QUESTION PAPER
EXAMINER(S) Prof Sylva nus A. Onjefu
MODERATOR: Dr Valentine T. Chabata
INSTRUCTIONS
1. Write all your answers in the booklet provided.
2. Begin each question on a new page
PERMISSIBLEMATERIALS
1. Non-Programmable Scientific Calculator
THIS QUESTION PAPERCONSISTSOF 3 PAGES
(Including this front page)
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QUESTION 1
[25)
1.1 Define environmental sustainability and give four levels where environmental
sustainability can be applied.
(4)
1.2 Environmental Scientist are growing increasingly concern about the elevated levels
of carbon dioxide. Discuss.
(5)
1.3 Briefly explain how human population have impacted our world negatively from the
Point of view of global, regional and local level.
(6)
1.4 Explain the following terms: population, community and ecosystem.
(6)
1.5 What is the mesosphere and what characterises temperature in the mesosphere?
(4)
QUESTION 2
[22)
2.1 Explain the term surface wind and how it is formed.
(5)
2.2 Differentiate between polar climate zone and high elevation climate zone.
(6)
2.3 Describe what makes the earth to quake.
(5)
2.4 Explain the following words as apply to the natural disaster call earthquake:
2.4.1 Fault zones.
(2)
2.4.2 Focus.
(2)
2.4.3 Epicenter.
(2)
QUESTION 3
[20)
3.1 Describe one method of Identifying carcinogenic substances.
(2)
3.2 Why do you think the method of identifying carcinogenic substance is indirect
and uncertain?
(4)
3.3 Describe the carbon cycle.
(5)
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3.4 Explain the layer of the atmosphere called the exosphere.
(4)
3.5 Describe the troposphere and its importance to life on earth.
(5)
QUESTION 4
[33]
4.1 Classify air pollutants and give two examples of each.
(9)
4.2 What is meant by Smog? What are the two types of Smog?
(4)
4.3 Discussthe cause and effects of two types of Smog.
(10)
4.4 Why is plume behaviour important?
(3)
4.5 Which plume is the most favourable with respect to minimising air pollution
and why?
(3)
4.6 Illustrate with the aid of a neat diagram how atmospheric condition give rise to a lofting
plume.
(4)
END
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