IGNOU BGGCT-131 June 2022 Previous Year Question Paper

Q1.Answer any five of the following questions. Each question carries equal marks. 5x4=20

(a) List out the inner and outer planets of the solar system and write any one important characteristic of these planets.

(b) How are metamorphic rocks formed ? Give any two significant properties of these rocks.

(c) Explain the difference between the ideas of Airy and Pratt about isostasy.

(d) What is ‘glacial plucking’ ? Give suitable example.

(e) Define the ‘Coriolis force’ and describe any two effects of this force.

(f) What are ‘Isotherms’ ? Explain their importance in climatology.

(g) Write any two important factors which affect the salinity of oceans.

(h) What are pelagic deposits ? Give any two examples.

Q2.Explain the concept of plate tectonics. Discuss important mechanisms involved in the movement of plates.

Q3.Critically explain the Gaseous hypothesis of Kant and Nebular hypothesis of Laplace in the origin of Earth and Solar System.

Q4.Explain in detail the four main components of the geosphere with neat sketch.

Q5.What do you understand by Weathering ?

Q6.Explain chemical weathering.

Q7.Discuss the classification of vertical structure of the atmosphere based on temperature, with suitable diagram.

Q8.How are tides originated ? Explain any three types of tides.

Q9.What do you understand by precipitation ?

Q10.Describe the three forms and types of precipitation.

Q11.Discuss hydrological cycle with a suitable diagram.

Q12.Answer any two of the following questions in about 600 words each : 2x10=20

(a) Define Seismology. Discuss any two main categories of seismic waves.

(b) How are folds formed ? Explain any three types with diagrams.

(c) | What are the major categories of Koeppen’s Climatic Classification ? Explain any two of them.

(d) Note the major features of the ocean floor. Discuss any three of them.