What is the purpose of the principle of uniformitarianism mentioned in question 1?

The principle of uniformitarianism states that the same geological processes that operate today have operated in the past, at roughly the same rates.

What does the term 'Somma' refer to in volcanology (question 6)?

In volcanology, 'Somma' refers to the rim of a semi-destroyed old volcanic crater, within which a new cone may form from subsequent eruptions.

What are 'black smokers' found in mid-ocean ridges (question 7)?

'Black smokers' are hydrothermal vents on mid-ocean ridges from which hot, mineral-laden water jets into the cold seawater.

What is trench rollback (question 8)?

Trench rollback describes the process where the subducting oceanic plate bends away from the island arc at deeper levels, causing the trench to retreat.

Combined Geo-Scientist 2021 Paper II Geology Question Paper PDF

Name: Combined Geo-Scientist 2021 Paper II Geology Question Paper PDF
Creator: UPSC
Keywords: Combined Geo-Scientist 2021, Geo-Scientist Preliminary Exam, UPSC Geology Paper II, Geology Question Paper PDF, Objective Geology Questions

Central Government Jobs Other Jobs 2021

Year 2021
Conducted By UPSC
Languages English

Exam Details

Detail	Information
Examination	Combined Geo-Scientist (Preliminary) Examination
Year	2021
Conducting Body	UPSC
Paper	Paper-II Geology
Subject	Geology
Question Type	Objective (MCQ)

This document contains the official question paper for the Combined Geo-Scientist (Preliminary) Examination 2021, Paper II, focusing on Geology. Conducted by UPSC, this paper features objective-type questions designed to assess candidates' knowledge in geological sciences. Aspirants can use this paper to understand the exam pattern, difficulty level, and important topics covered, aiding in their preparation for the Geo-Scientist exam. Practicing with previous years' papers like this is crucial for success.

Major Topics Covered

Uniformitarianism
Solar System Evolution
Earth's Crust (Sial/Sima)
Atmospheric Pressure and Wind
Plate Tectonics
Earthquakes (Megathrust)
Volcanology
Hydrothermal Vents
Glaciology

Why This Paper is Important

Useful for Combined Geo-Scientist (Preliminary) Exa preparation
Helps understand the latest exam pattern
Useful for practice and self-assessment
Covers frequently asked General Studies topics
Helpful for analysing question trends

Related Resources

Combined Geo-Scientist 2020 Paper II Geology
Combined Geo-Scientist 2022 Paper II Geology
UPSC ESE Geology Paper
Combined Geo-Scientist 2021 Paper II Answer Key
Combined Geo-Scientist Syllabus
Geology Syllabus for Competitive Exams
Combined Geo-Scientist Exam Pattern
UPSC Exam Pattern

Instructions

The principle of uniformitarianism states that: (a) The same external and internal processes that we recognize today have been operating consistent throughout most of earth's history (b) The rate of external and internal processes that we recognize today have been operating consistent throughout most of earth's history (c) The rate of rock cycles have been constant throughout the earth's history (d) The rate of rock cycles have changed through the different periods of earth's history
Which one of the following is the most widely accepted model of the "evolutionary theories of solar system"?

Questions (page 2)

Q5. Megathrust earthquakes are the most damaging and deadly of all earthquakes, these megathrusts are located:

(a) At the continent rift and transform plate boundary
(b) In the divergent plate boundary zone
(c) Along the contact between the subducting plate and the overriding plate
(d) Along the contact between mid-oceanic ridges and transform fault

Q6. The term 'Somma' refers to:

(a) The highly saturated chlorous volcanic compounds comprising sodium, potassium and iron
(b) The rim of the semi-destroyed old volcanic crater, inside which another cone may rise by subsequent eruptions
(c) The enlargement of crater of volcanoes by various eroding agents
(d) The depression on the slopes of volcanic cones

Q7. Mid-ocean ridges contain 'black smokers' which are:

(a) Volcanic smoke that contains mainly carbon in particulate form under deep sea
(b) Hydrothermal vents from where hot water laden with fine grained sulfide minerals jets out into the cold sea water
(c) Deep seated vents that pours out magma continuously in small amount
(d) Deepest part of mid oceanic ridges which are largely inactive

Q8. Trench rollback is:

(a) Subduction of continental plate into asthenosphere and bounce back by the magmatic pressure
(b) Spreading of oceanic plate and subduction into another trench
(c) Subduction of oceanic plate into asthenosphere and bend toward the island arc
(d) Bending of the subducting oceanic plate away from the island arc at deeper levels

Q9. In glacier, the debris which is carried at the surface of ice is termed as:

(a) Abrasion
(b) Englacial transport
(c) Supraglacial transport
(d) Subglacial transport

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Frequently asked questions

What is the exam name?

The exam name is the Combined Geo-Scientist (Preliminary) Examination.

Which year is this question paper from?

This question paper is from the year 2021.

Who conducts the Combined Geo-Scientist Examination?

The Combined Geo-Scientist Examination is conducted by UPSC (Union Public Service Commission).

What is the subject of Paper II?

Paper II of this examination is focused on Geology.

What type of questions are included in this paper?

This paper consists of objective-type questions (MCQs).

Can I download the Combined Geo-Scientist 2021 Paper II question paper?

Yes, you can typically find and download the official question papers for competitive exams like the Combined Geo-Scientist examination.

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