BGYCT-131 · December 2025 · English
IGNOU BGYCT-131 December 2025 Previous Year Question Paper
PHYSICAL AND GENERAL GEOLOGY
Structured previous year question paper for BGYCT-131, December 2025 session.
Max marks: 50 · Questions: 4
Verified: 10 Aug 2026
BACHELOR OF SCIENCE (GENERAL)
(BSCG/BSCM)
Term-End Examination
December, 2025
BGYCT-131 : PHYSICAL AND STRUCTURAL
GEOLOGY
Time : 2 Hours Maximum Marks : 50
Note:
(i) All questions are compulsory.
(ii) Marks allotted for each question are
indicated against it.
(iii) Draw swell ——ilabelled = diagrams
wherever necessary.
Q1.Briefly answer any five of the following :
(a) Uniformitarianism
(b) Planetesimal hypothesis (०) Spheroidal weathering
(d) Braided channel
(e) Plunging fold
(f) Chevron fold
(g) Ophiolites
(h) Intraplate voleanism
Q2.Write short notes on any four of the following : 4x5=20
(a) Descriptive mineralogy
(b) Products of voleanism
(c) Karst topography
(d) Criteria for recognition of folds
(e) Evidences of sea-floor spreading
(f) Mountain building periods
Q3.Answer any one of the following : 10
(a) Discuss in detail the radioactive methods used to determine absolute age of the Earth.
(b) What is a clinometer compass ? Briefly explain how structural elements are measured.
Q4.Answer any one of the following :
(a)
(i) Discuss the erosional landforms developed by underground water. 5
(ii) What is biological weathering ? Briefly explain the products of weathering. 5
(b) What is mountain building ? Discuss the mountain building process based on geosynclinal theory with neat diagrams. 10 4x5=20