Envs120 Final Exam
UNIVERSITY OF KWAZULU- NATAL HOWARD COLLEGE
EXAMINATION : NOVEMBER 2010
SCHOOL : ENVIRONMENTAL SCIENCES
LEVEL : 1
MODULE : ENVIRONMENTAL SYSTEMS
CODE : ENVS120 H2
DURATION : 3 HOURS TOTAL MARKS : 100 __________________________________________________________________
INTERNAL EXAMINERS: Mr N Njoya Mr J Lutchmiah
EXTERNAL EXAMINER: Dr O Mutanga
______________________________________________________________________
ANSWER EACH SECTION IN A SEPARATE ANSWER BOOK
_______________________________________________________________________
SECTION A : Atmospheric and Hydrospheric Processes (50 MARKS)
ANSWER EITHER QUESTION 1 OR 2 (25 marks)
1 Explain, with the aid of a diagram, the role of the Hydrological Cycle in the conversion of a meager supply of water to a more generous one. (25)
2 Discuss the various types of floods with particular reference to magnitude, climate and environmental impacts. (25)
ANSWER EITHER QUESTION 3 OR 4 (25 marks)
3 Explain, with the aid of a diagram, the vertical layered structure of the atmosphere. (25)
4 Discuss the various causes and consequences of global warming. (25)
SECTION B : Biospheric and Lithospheric Processes (50 MARKS)
ANSWER QUESTION 5 AND ANY TWO FROM OUESTIONS 6 TO 9 (25 Marks)
5 Describe and explain continental shape and Earth’s structure as evidence of continental drift. (5)
6 What processes lead to the formation of volcanoes? With the help of sketch diagrams, describe and discuss two intrusive landforms of volcanicity. (10)
7 Provide a detailed definition of rock weathering and explain its role in the rock cycle. (10)
8 Briefly explain how metamorphic rocks are formed and discuss two types of rock metamorphism providing examples. (10)
9 The formation of soil is influenced by several factors. Explain the role of five known factors that contribute to this process. (10)
ANSWER QUESTION 10 AND ANY TWO FROM
EXAMINATION : NOVEMBER 2010
SCHOOL : ENVIRONMENTAL SCIENCES
LEVEL : 1
MODULE : ENVIRONMENTAL SYSTEMS
CODE : ENVS120 H2
DURATION : 3 HOURS TOTAL MARKS : 100 __________________________________________________________________
INTERNAL EXAMINERS: Mr N Njoya Mr J Lutchmiah
EXTERNAL EXAMINER: Dr O Mutanga
______________________________________________________________________
ANSWER EACH SECTION IN A SEPARATE ANSWER BOOK
_______________________________________________________________________
SECTION A : Atmospheric and Hydrospheric Processes (50 MARKS)
ANSWER EITHER QUESTION 1 OR 2 (25 marks)
1 Explain, with the aid of a diagram, the role of the Hydrological Cycle in the conversion of a meager supply of water to a more generous one. (25)
2 Discuss the various types of floods with particular reference to magnitude, climate and environmental impacts. (25)
ANSWER EITHER QUESTION 3 OR 4 (25 marks)
3 Explain, with the aid of a diagram, the vertical layered structure of the atmosphere. (25)
4 Discuss the various causes and consequences of global warming. (25)
SECTION B : Biospheric and Lithospheric Processes (50 MARKS)
ANSWER QUESTION 5 AND ANY TWO FROM OUESTIONS 6 TO 9 (25 Marks)
5 Describe and explain continental shape and Earth’s structure as evidence of continental drift. (5)
6 What processes lead to the formation of volcanoes? With the help of sketch diagrams, describe and discuss two intrusive landforms of volcanicity. (10)
7 Provide a detailed definition of rock weathering and explain its role in the rock cycle. (10)
8 Briefly explain how metamorphic rocks are formed and discuss two types of rock metamorphism providing examples. (10)
9 The formation of soil is influenced by several factors. Explain the role of five known factors that contribute to this process. (10)
ANSWER QUESTION 10 AND ANY TWO FROM