MAHATMA GANDHI UNIVERSITY
FIFTH SEMESTER B.Sc. DEGREE EXAMINATION 2015 (CBCSS-Mark Scheme)
UNDERSTANDING THE EARTH
(GEOLOGY: OPEN COURSE FOR OTHER STREAMS)
MODEL QUESTION PAPER
Time: Three Hours
Maximum Marks: 80
Draw neat sketches wherever necessary
I. Name the following (Answer all questions)
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Branch of geology dealing with study of rocks
Type of weathering caused by alternate heating and cooling
Instrument used to measure seismic intensity
Uppermost horizon in typical soil profile
Hardest mineral
Slowest downward movement of landmass
Fastest seismic wave
Molten material flowing out of volcanoes
Example of an intrusive igneous rock
The point on Earth’s surface, vertically above focus of earthquake
(10x1=10 marks)
II. Short answer questions (Answer any eight, in not more than 100 words each)
11. Lithosphere
12. Vadose zone
13. Water table
14. Pyroclastic deposits
15. Luster of minerals
16. Landslides
17. Petrified wood
18. Bore wells
19. Size and shape of the Earth
20. Exfoliation
21. Geomorphology
22. Streak of minerals
(8x2 = 16 marks)
III. Short Essays (Answer any six, in not more than 300 words each)
23. Igneous rocks
24. Sedimentary rocks
25. Recharge of groundwater
26. Rock cycle
27. Mercalli Scale
28 Seismometer
29. Types of lava
30. Frost wedging
31. Hardness of minerals
(6x4 = 24 marks)
IV. Essay questions (Answer any two, in not more than 1000 words each)
32. Describe the internal structure of the earth, with help of a neat sketch
33. Define fossil. Describe the different processes of fossilization
34. What is weathering? Give a brief account of chemical weathering of rocks
35. Give an account of classification of minerals.
(2x15 = 30 marks)
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