IGNOU BGGCT-131 December 2024 Previous Year Question Paper

Q1.Attempt any five of the following questions : 5x4=20

(i) Differentiate between terrestrial planets and outer planets.

(ii) Define lithosphere and _ state its relevance.

(7) Explain the terms ‘frost action’ and ‘exfoliation’ related to weathering.

(iv) Define the concept of cycle of erosion.

(v) Discuss six sub-divisions of climatology as identified by Ayoade in 2014.

(vi) Differentiate between latitudinal and altitudinal distribution of water vapour.

(vii) Explain the significance of climatic classification.

(viii) Differentiate between movement of water from surface to air and air to surface in a hydrological cycle.

Q2.Explain the gaseous concept of Kant and Nebular hypothesis of Laplace. Briefly highlight the major differences between the two.

Q3.Give a detailed description of origin and classification of rocks.

Q4.Explain in detail the Plate Tectonic Theory.

Q5.Illustrate your answer with suitable diagrams.

Q6.What is volcano ? Explain the different types of volcanoes.

Q7.What is insolation ? Describe the factors that affect the insolation.

Q8.Describe the basic features of any two major oceans. Illustrate your answer with a suitable diagram.

Q9.What is salinity ? Explain the horizontal and vertical distribution of salinity in the oceans.

Q10.What is tide ? Explain the four theories of origin of tides with the help of suitable diagrams.

Q11.Answer any two of the following questions in about 600 words each : 2x10=20

(i) Explain Big-Bang hypothesis and Cepheid hypothesis.

(ii) Differentiate between the terms ‘Flows’ and ‘Earth flow’ related to the phenomena of mass wasting.

(iii) What is Coriolis force ? Illustrate your answer with a suitable diagram.

(iv) Describe hypsographic curve. Illustrate your answer with a suitable diagram. 5x4=20

(iv) SeaaTeeit AH (hypsographic curve) ®