Question Q.6GS1GS1

What are Northern and Southern lights? Explain the phenomenon and discuss their associated impacts on Earth's atmosphere and human activities.

Introduction

Northern and Southern lights are an atmospheric phenomenon where bright & colourful lights are observed in the sky mainly in N. / Polar regions.

24 words

Main Body

Northern and Southern lights are an atmospheric phenomenon where bright & colourful lights are observed in the sky mainly in N. / Polar regions.

Formation

Sun's solar flares interact with Earth's magnetic field and the ions in the ionosphere

Solar makes charged ions emit electromagnetic radiation of specific frequency.

Interaction in ionosphere

Impacts on Earth's atmosphere and human activities

1Tourist spots → They look very beautiful and are huge tourist attractions

2They have the potential to disturb ionic communication

i.e. S & L bands

3They give information about the solar cycle

4Unequal distribution of ionosphere leads to anomaly temperature and time heterogenization of atmospheric gases.

Aurorae & Southern lights are an interesting & unique geophysical phenomenon.

— ABHISHEK SHARMA · AIR 38

122 words8 paragraphs2 bullet points

Conclusion

Aurorae & Southern lights are an interesting & unique geophysical phenomenon.

11 words

Diagram

Diagram showing interaction between Sun, solar flares, Earth's magnetic field, and ionosphere. Illustrates the pathway of charged particles from the Sun to Earth's atmosphere.

Clear explanation of formation mechanism
Includes helpful diagram
Good scientific terminology
Covers multiple impact dimensions
Includes practical applications
Addresses both positive and negative impacts

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Topper

ABHISHEK SHARMA

AIR 382024

Subject & Paper

GS1GS1

Topic

Salient features of World's Physical Geography

Atmospheric phenomena

Aurora Borealis and Aurora Australis

Writing Stats

157

Total words

Paragraphs

Bullets

Scientific and explanatory

Tone

Linked PYQ

(e) A building project has a following time schedule Activity Time (in months) Activity Time (in months) 1-2 2 3-7 5 1-3 2 4-6 3 1-4 1 5-8 1 2-5 4 6-9 5 3-6 8 7-8 4 8-9 3 Table Supporting: IAS Mains Optional Management Paper 2 Year 2020 Draw a network and calculate: Critical path and duration Total float for each activity If the duration of activity 7 - 8 is increased to 6 months which the critical path change? If yes, what will be the new critical path?

10M2020