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Free Practice Questions for Karnataka II PUC Geology (KSEAB)

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Key Facts: Karnataka II PUC Geology (KSEAB) Exam

Code 37

Official II PUC Geology subject code

KSEAB / DPUE II PUC subject list and blueprints 2025–26

80 marks

Public theory paper maximum marks (mixed format)

KSEAB II PUC Geology scheme of evaluation (e.g., March 2025)

3 h 15 m

Typical II PUC exam duration including reading time

KSEAB II PUC exam logistics / date sheet reporting

~30% / ~33%

Commonly reported per-subject minimum and overall aggregate pass range

KSEAB pass criteria reporting (confirm current circular)

80+20 pattern

Commonly described theory + internal split (confirm year notice)

KSEAB II PUC assessment reporting

Mixed paper

Official format is objective + subjective with diagrams, not pure MCQ

KSEAB II PUC Geology Parts A–D evaluation scheme

English MCQ adaptation

This free local bank is not the official mixed paper format

OpenExamPrep practice policy

KSEAB II PUC Geology (code 37) is a Class 12 board subject with a mixed objective + subjective 80-mark theory paper (~3 h 15 min) plus ~20 internal as commonly described. Pass is commonly ~30% per subject and ~33% aggregate as notified. Fees are paid through colleges. This free 2026 bank is an English MCQ study adaptation — not an official paper simulation.

Sample Karnataka II PUC Geology (KSEAB) Practice Questions

Try these sample questions to review concepts for the Karnataka II PUC Geology (KSEAB) exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1During the rock cycle, how can a sedimentary rock become a metamorphic rock?
A.By heat and pressure (and often fluids) without complete melting
B.By melting completely into magma and then extruding as lava
C.By simple mechanical crushing at the surface with no temperature change
D.By dissolving fully in seawater and reprecipitating as salt
Explanation: In the rock cycle, sedimentary rock becomes metamorphic when it is buried and subjected to elevated pressure, temperature, and commonly chemically active fluids, causing recrystallization and new mineral assemblages without wholesale melting.
2What does petrology primarily study?
A.Only the classification of living fossils in sedimentary basins
B.The origin, composition, classification, and occurrence of rocks
C.Only the measurement of earthquake magnitude scales
D.Only the chemistry of seawater and atmospheric gases
Explanation: Petrology is the branch of geology concerned with rocks: their formation (petrogenesis), mineral composition, textures and structures, classification, and field occurrence.
3Rocks that form by solidification of magma or lava are called:
A.Sedimentary (secondary) rocks only
B.Metamorphic rocks only
C.Igneous (primary) rocks
D.Organic soils
Explanation: Igneous rocks crystallize from molten rock (magma underground or lava at the surface). They are often called primary rocks because they form directly from melt rather than from reworked pre-existing rock fragments.
4Secondary rocks in the II PUC geology sense most nearly means:
A.Only volcanic glass quenched at the surface
B.Only high-grade granulites of the deep crust
C.Only man-made concrete and brick
D.Sedimentary rocks formed from weathered products of pre-existing rocks
Explanation: Sedimentary rocks are called secondary rocks because their materials are derived from breakdown and reworking of earlier rocks (and biogenic/chemical sources), then deposited and lithified.
5Which process is required to turn loose sediment into solid sedimentary rock?
A.Lithification (compaction and cementation / diagenesis)
B.Complete melting of the sediment pile
C.Only wind abrasion without burial
D.Only sudden freezing of surface water
Explanation: Loose sediment becomes sedimentary rock through lithification: burial-driven compaction, cementation by minerals precipitated from pore fluids, and broader diagenetic changes.
6In the rock cycle, which path correctly produces an igneous rock from a metamorphic rock?
A.Only gentle weathering at the surface without melting
B.Melting of the metamorphic rock followed by cooling and crystallization of magma
C.Only cementation of metamorphic fragments without heat
D.Only alignment of micas under directed stress without melting
Explanation: Any rock type can melt. When a metamorphic rock melts and the resulting magma later cools and crystallizes, the new rock is igneous.
7Texture in igneous petrology mainly refers to:
A.Only the large mountain-scale shape of a batholith
B.Only the color of a rock hand specimen
C.Small-scale features of grain size, shape, and mutual relationships among minerals (and glass)
D.Only the absolute age determined by radiometric dating
Explanation: Texture describes the crystallinity, grain size (granularity), grain shape, and geometric relations among minerals and glass as seen in hand specimen or under the microscope.
8Which statement best contrasts rock structure with rock texture?
A.Structure always requires a microscope; texture never does
B.Structure applies only to fossils; texture applies only to water
C.Structure and texture are exact synonyms in all textbooks
D.Structure is larger-scale fabric or form; texture is smaller-scale grain relations
Explanation: Structures (vesicles, pillows, bedding, folds at outcrop scale) are larger features of rock bodies, while textures concern grain-scale arrangements. Both are used in description and classification.
9Which of the following is a hypabyssal (shallow intrusive) rock commonly cited in II PUC papers?
A.Dolerite (diabase)
B.Obsidian
C.Pumice
D.Shale
Explanation: Dolerite (diabase) is a medium-grained mafic rock that typically forms shallow intrusive bodies such as dykes and sills — classic hypabyssal setting between plutonic and volcanic extremes.
10Sills are best described as:
A.Discordant, wall-like bodies that cut across bedding
B.Thin, tabular concordant intrusive bodies roughly parallel to bedding
C.Pipe-like vertical feeders only at volcano summits
D.Loose piles of volcanic ash without intrusion
Explanation: Sills are sheet-like intrusions that are concordant — they inject roughly parallel to layering of the host rocks. Dykes, by contrast, are typically discordant.

About the Karnataka II PUC Geology (KSEAB) Exam

Karnataka II PUC Geology is the Class 12 Pre-University public examination geology paper (subject code 37) under the Karnataka School Examination and Assessment Board (KSEAB). It assesses petrology (rock cycle; igneous, sedimentary, and metamorphic rocks), structural geology (strike/dip, folds, faults, joints, unconformities), stratigraphy and geology of Karnataka (Dharwar Craton, Deccan basalt, coastal sediments), and palaeontology (fossilization and key fossil morphology). The official assessment is a mixed objective + subjective 80-mark theory paper lasting about 3 hours 15 minutes. Fees and exact blueprints are notified by KSEAB on kseab.karnataka.gov.in and the DPUE blueprint portal; pass marks are commonly described as about 30% per subject with ~33% aggregate. The 100 questions on this page are a free English-language multiple-choice study adaptation emphasizing rock/fossil identification and geologic processes; they are not a full simulation of the official mixed paper.

Exam sponsor: Karnataka School Examination and Assessment Board (KSEAB). The requirements and fees below concern the certification or admission exam, separate from our free practice resources.

Assessment

Official KSEAB II PUC Geology (subject code 37) is assessed as a mixed 80-mark theory paper: 1-mark objective-style items (MCQ, fill-in, match, short define) plus multi-mark short and long answers requiring diagrams and rock/fossil descriptions, lasting about 3 hours 15 minutes including reading time for many II PUC subjects. Theory is widely associated with an 80 mark written component plus 20 internal assessment — confirm the year’s circular on kseab.karnataka.gov.in. This practice bank is an English-language MCQ study adaptation for identification and process fluency — it does not simulate official attempt limits, labelled diagrams, long descriptive answers, or internal assessment.

Time Limit

3 hours 15 minutes

Passing Score

Commonly reported as about 30% minimum per subject (often cited as 24/80 on the theory paper) together with about 33% overall aggregate as published by KSEAB for the year; verify the current pass criteria circular.

Exam / Certification Fees

As notified by KSEAB and paid through PU colleges for regular II PUC sittings (no single fixed public subject fee for all categories).

Exam sponsor website

Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.

Our practice resources: topics covered

We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.

~8% of this local bank

Petrology fundamentals

Rock cycle pathways, definitions of primary vs secondary rocks, and the scope of petrology.

~16% of this local bank

Igneous rocks

Intrusive vs extrusive forms, structures (sills, dykes, pahoehoe), textures, and identification of granite, basalt, and dolerite.

~14% of this local bank

Sedimentary rocks

Formation processes, sedimentary structures, Wentworth grain sizes, and identification of conglomerate, sandstone, shale, and limestone.

~12% of this local bank

Metamorphic rocks

Agents, zones, dynamothermal and other metamorphism types, and identification of schist, gneiss, marble, quartzite, and charnockite.

~18% of this local bank

Structural geology

Brunton compass, strike and true/apparent dip, joints, fold and fault geometry and types, unconformities, outliers, and applied importance.

~16% of this local bank

Stratigraphy & Karnataka geology

Principles of stratigraphy, geologic eras, Indian shield Archaean rocks, Dharwar Craton, Deccan basalt, and coastal Tertiary–Quaternary sediments.

~16% of this local bank

Palaeontology

Preservation conditions, fossilization modes (carbonization, mummification, molds), and morphology/age of trilobites, brachiopods, corals, and plant fossils such as Glossopteris.

Preparing for the Karnataka II PUC Geology (KSEAB) Exam

What You Need to Know

  • Passing score: Commonly reported as about 30% minimum per subject (often cited as 24/80 on the theory paper) together with about 33% overall aggregate as published by KSEAB for the year; verify the current pass criteria circular.
  • Assessment: Official KSEAB II PUC Geology (subject code 37) is assessed as a mixed 80-mark theory paper: 1-mark objective-style items (MCQ, fill-in, match, short define) plus multi-mark short and long answers requiring diagrams and rock/fossil descriptions, lasting about 3 hours 15 minutes including reading time for many II PUC subjects. Theory is widely associated with an 80 mark written component plus 20 internal assessment — confirm the year’s circular on kseab.karnataka.gov.in. This practice bank is an English-language MCQ study adaptation for identification and process fluency — it does not simulate official attempt limits, labelled diagrams, long descriptive answers, or internal assessment.
  • Time limit: 3 hours 15 minutes
  • Exam / certification fees: As notified by KSEAB and paid through PU colleges for regular II PUC sittings (no single fixed public subject fee for all categories). Official sources

Using Our Practice Resources

  • Work through all 100 available questions
  • Review every answer and explanation
  • Track weak areas and revisit them
  • Use our AI tutor for tough concepts

Karnataka II PUC Geology (KSEAB): Suggested Study Strategy

1Practice official KSEAB II PUC Geology model papers under timed ~3 h 15 min conditions so you can switch from MCQ drills to written multi-mark answers and labelled diagrams.
2Build a rock identification card set: granite vs basalt vs dolerite; conglomerate vs sandstone vs shale; schist vs gneiss vs marble vs charnockite — board papers repeatedly test these.
3Master strike, true dip, apparent dip, and Brunton compass uses early; many 2- and 3-mark structural items depend on them.
4For folds and faults, sketch parts (hinge, limbs, axial plane; hanging wall, footwall, throw) until you can label them from memory.
5Memorize geologic time order (Precambrian → Paleozoic → Mesozoic → Cenozoic) and Karnataka highlights: Dharwar Craton, peninsular gneiss, Deccan basalt, coastal Tertiary–Quaternary sediments.
6For paleontology, learn morphology keywords (glabella, pleurae, pedicle opening, umbo, spire, suture) and age ranges for Paradoxides, Terebratula, and Glossopteris.
7Use English-medium textbook wording if you study in English; also review official KSEAB blueprint language and model papers for Part A–D structure.

Frequently Asked Questions

Is the official KSEAB II PUC Geology exam pure multiple-choice?

No. Official KSEAB II PUC Geology (code 37) is a mixed paper with 1-mark objective-style items and multi-mark short/long answers (including diagrams and rock/fossil descriptions) totaling 80 theory marks. This bank is an English-language multiple-choice study adaptation for concepts and identification only — not an official paper simulation.

What is the subject code for II PUC Geology?

KSEAB II PUC Geology is subject code 37. Confirm the year’s date sheet and question paper instructions on kseab.karnataka.gov.in and the DPUE blueprint portal.

How long is the KSEAB II PUC Geology paper?

Many II PUC subjects, including Geology, are commonly scheduled for about 3 hours 15 minutes including reading time. Confirm the year’s date sheet and instructions on kseab.karnataka.gov.in.

What is the passing score for KSEAB II PUC Geology?

Recent reporting commonly describes about 30% minimum per subject (often 24 out of 80 on the theory paper) together with about 33% overall aggregate as notified by KSEAB. Always verify the current result/pass criteria circular for your examination year.

What is the theory–internal mark pattern?

II PUC Geology theory is assessed for 80 marks in the public written paper. The subject is commonly described under an 80 theory + 20 internal assessment pattern. Exact internal weightage and any practical component are as published by KSEAB for the year — check official circulars on kseab.karnataka.gov.in.

How much does the KSEAB II PUC Geology exam cost?

Geology is not sold as a separate marketplace product. Fees are notified by KSEAB and paid through PU colleges for regular candidates. Check kseab.karnataka.gov.in for the current fee circular.

What syllabus does this bank follow?

It is aligned to Karnataka II PUC Geology (code 37): introduction to petrology; igneous, sedimentary, and metamorphic rocks; structural geology; stratigraphy including geology of Karnataka; and palaeontology — matching the Department of Pre-University Education / KSEAB unit outline and recent board paper themes.

Where can I find the official blueprint and model papers?

KSEAB publishes II PUC subject-wise blueprints for 2025–26 at https://dpue-exam.karnataka.gov.in/kseabdpueqpue/PUExamBluePrint2026.aspx (Geology code 37 is listed) and model papers via the DPUE exam portal. Also see pue.karnataka.gov.in and kseab.karnataka.gov.in for syllabus and circulars.