Topic : Distribution of key natural resources across the world (including South Asia and the Indian sub-continent); factors responsible for the location of primary, secondary, and tertiary sector industries in various parts of the world (including India).
1. Examine the biological significance of soil and give a bio-climatic classification of the soils found on the surface of the earth. (250 words)
Reference: fundamentals of physical Geography by G C Leong
Why the question:
The question is about the biological significance of soil and the bio-climatic classification of the soils found on the surface of the earth.
Key Demand of the question:
One is expected to explain the bio-climatic classification of the soils found on the surface of the earth while bringing out the biological significance of soil.
Examine – When asked to ‘Examine’, we must look into the topic (content words) in detail, inspect it, investigate it and establish the key facts and issues related to the topic in question. While doing so we should explain why these facts and issues are important and their implications.
Structure of the answer:
Start with the definition of Soil.
Soil is a mixture of organic matter, minerals, gases, liquids, and organisms that together support life.
Discuss then the biological significance of it; as a medium for plant growth, as a means of water storage, supply and purification, as a modifier of Earth’s atmosphere, as a habitat for organisms.
Then move onto discuss the bio-climatic classification of the soils.
Conclude with importance.