Karnataka 2nd PUC Model Question Paper 2027 for Geology (Paper 5)

FOR KARNATAKA CLASS 12 PREPARATION

Karnataka 2nd PUC
Model Question Paper
2027 for Geology
(Paper 5)
EXAM YEAR TYPE SUBJECT

Karnataka Class 12 2027 Sample Paper Geology

Notes · Sample Papers · Previous Year Papers · Mock Tests

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GOVERNMENT OF KARNATAKA
KARNATAKA SCHOOL EXAMINATION AND ASSESSMENT BOARD
MODEL QUESTION PAPER - 05 2026-27

GEOLOGY (37)

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Duration: 3.00 hour Max. Marks: 80
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Instructions:

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1. All parts are compulsory.
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3. Write correctlquestion numbers.
2. Draw neat labelled diagrams wherever necessary.
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4. For part a
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A questions only first written answers will be considered for evaluation.
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Part A
I. Answer all of the following questions. (5X1=5)
1. Which mountain range formed during Cenozoic era?
a. The Alps
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c. The Appalachian Mountains

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b. The Aravalli Range
2. What type of rocks are formed by the einfluence
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chemically active fluids?
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a. Metamorphic rocks c. Sedimentary rocks
b. Igneous rocks d. Residual rocks
3. Which texture type consists entirely of crystalline minerals?
a. Holohyaline c. Holocrystalline
b. Merocrystalline d. Cryptocrystalline
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4. What term describes the highest point of an upfold?

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Axis d. Crest

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b. Gneissose d. Foliated

II. Fill in the blanks (5X1=5)

(Paleozoic, Umbo, Glossopteris, Syncline, Petrology, Hinge)
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6. ________in which younger rocks are always found at the centre of the curvature.
7. In ______ we mainly study rocks their types, origin and occurrence.
8. _____ era is marked by permian extinction.
9. ____is prominent on ventral valve with a pedicle opening.
10. ______ represents lower gondwana time.
III. Match the following. (5X1=5)
11. A B
i. Secondary rock a. Breccia
ii. Conglomerate b. > 2.00mm
iii. Eclogite c. Hypo zone
iv. Heave d. Fault
v. Lauressia e. Mesozoic
f. Mesozone
VI. Answer all of the following questions. (5X1=5)
12. Mention the chemical composition of limestone.
13. What is dyke?
14. What is hanging wall?
15. What are conformable beds?
16. Mention the age of paradoxide.
PART-B
IV. Answer any Seven of the following (7X2=14)
17. What is tertiary rock? Give example.
18. Mention difference in magma and lava.
19. What is Batholith?
20. What is holocrytalline texture?
21. What is digenesis?
22. What are endogenetic rocks?
23. Mention the effects of pressure in metamorphism.
24. Write any two varieties of schist rock.
25. Write a short note on Precambrian eon.
26. How outlier outcrop is formed?
27. Draw stages of development of septas in corals.

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V. Answer any seven questions from the following. (7X3=21)
28. How fold structures are formed?
29. Draw neat labelled diagram of step fault.
30. Write a note on angular unconformity.
31. Write a note on economic importance of Archeans.

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32. Draw a chart showing periods and time range of cenozoic era.

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Write a note on. extrusive igneous rocks. e
33. With neat labelled diagram explain poikilitic texture.
34.
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35. Explain role of temperature in metamorphism.
36. Withaneat labelled diagram explain stratification.
37. Write a note on carbonization.
38. Explain conditions of preservations of fossils.
VI. Answer any five questions from the following. (5X5=25)
39. Explain parts of folds.

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40. Explain parts of Joints.
41. Explain five major zones of archeans.
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42. Write properties of granite and syenite.
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44.
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Write properties of Quartziteaand Marble.
Explain intrusive form of igneous

45. Explain parts of gastropods.
46. Draw chart showing distribution of corals.
47. Describe pygidium on trilobite

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