IAS (Admin.) Mains Geography: Questions 447 - 453 of 761

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Question 447

Describe in Detail Subjective▾

Discuss the processes of mechanical and chemical weathering and show their relationship with soil formation.

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Explanation

Weathering is natural process of mechanical disintegration and chemical decomposition of rock material, insitu, under the action of weather and climate. It breaks rock fragments in smaller, softer and bulkier one. Mechanical and Chemical weathering together with biological weathering are three different types of weathering.

Mechanical Weathering Mec…

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Question 448

Appeared in Year: 2018

Describe in Detail Subjective▾

Discuss critically how Quantitative Revolution provided the methodological foundation for models and modelling in geography.

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Explanation

  • Quantitative revolution and model building provided an empirical basis for geographical research.
  • The genesis and growth of geography to decipher the man-environment relationship largely followed a descriptive approach. In its pursuit, the discipline was constantly confronted by the problems of generalization and theory building. The decreasing sign…

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Question 449

Appeared in Year: 2018

Describe in Detail Subjective▾

Explain the role of evaporation in the Hydrological Cycle?

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Explanation

The water cycle is the continuous movement of water from the earth՚s surface to the atmosphere and then back to the ground. It does not have a starting or an ending point. Water goes through all the three states, solid-liquid-gas, in the process & sun, air currents assist the water cycle,

  • No rain equals no water for the forests and other greenery in…

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Question 450

Appeared in Year: 2020

Describe in Detail Subjective▾

Answer the following in about 150 words each:

“Where economic growth is sustained over long time periods, its incidence works towards a progressive integration of the space economy.” Elucidate.

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Explanation

In 1966 John Friedman developed the core-periphery four-stage model of regional development, explaining that “where economic growth is sustained over long time periods, its incidence works towards a progressive integration of the space economy” .

Core Periphery Model

A spatial model of economic development based on the observation that regionally, na…

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Question 451

Describe in Detail Subjective▾

Discuss the concept of cycle of erosion and bring out clearly the difference between the views of Davis and Penck.

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Explanation

Concept of Cycle of Erosion and Difference between the Views of Davis and Penck

Cycle of Erosion

The concept of cycle of erosion deals with the transformation of an uplifted landmass by the process of land sculpture into a featureless plain and strives for explaining what effect can an exogenic force have on the landscape.

Different geomorphologists p…

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Question 452

Appeared in Year: 2020

Describe in Detail Subjective▾

Answer the following in about 150 words each:

“Human ecology is the study of mutual relationship of people and their environment both natural and social.” Discuss in detail using ecological concepts. (marks 15)

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Explanation

Human ecology is an interdisciplinary and transdisciplinary study of the relationship between humans and their natural, social, and built environments.

This concept is concern with the following situation:

  • Social and genetical adaptation of humans to the environment and to environmental change;
  • The role of social, cultural, and psychological factors i…

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Question 453

Describe in Detail Subjective▾

Discuss different types of GIS software.

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Explanation

Geographic Information System is designed to store, manage, display and analyse all types of geographic and spatial data. Choosing the right GIS tool is really about understanding the problem that users are looking to solve.

Geographic Information System

Desktop GIS

  • They are used for creating, editing, visualising, managing, and analysing geographic d…

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