Print Friendly, PDF & Email

2) Explain the concept of geomagnetism. List out the causes that make earth to behave as a magnet. Discuss the implications of the change in  earth’s magnetic field in recent geological past.(250 words)

Are you Ready for Insta 75 Days Revision Plan (UPSC Prelims - 2020)?

Topic: Important Geophysical phenomena such as earthquakes, Tsunami, Volcanic activity, cyclone etc., geographical features and their location- changes in critical geographical features (including waterbodies and ice-caps) and in flora and fauna and the effects of such changes.

2) Explain the concept of geomagnetism. List out the causes that make earth to behave as a magnet. Discuss the implications of the change in  earth’s magnetic field in recent geological past.(250 words)

Reference

Why this question:

The question is straightforward – explain the concept of Geomagnetism and discuss the recent shift in geological past and explain its significance.

Demand of the question:

The concept of Geomagnetism needs to be explained in detail along with effects it has, explain the recent change in the earth’s magnetic field in geological past.

Directive word:

DiscussThis is an all-encompassing directive – you have to debate on paper by going through the details of the issues concerned by examining each one of them. You have to give reasons for both for and against arguments.

Structure of the answer:

Introduction

Start with brief discussion on what you understand by Geomagnetism. And discuss the recent changes  and the affects it has on Earth’s magnetic field.

Body

Explain in detail what you understand by Geomagnetism. And discuss the recent changes  and the affects it has on Earth’s magnetic field. The question is conceptual and requires not much deliberation. Ensure to add the latest developments from news.

Conclusion

Conclude with consequences of such changes.