Question Q.4GS1GS1

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Introduction

Earth's surface receives heat from the Sun in other wave form but not all parts of earth have same amount of temperature distribution.

23 words

Main Body

Factors responsible for uneven temperature distribution on earth's surface:

1Inclination of Earth's axis

At 23½°C

Inclination of sun's rays at different angles → thus differential heating

2Inclination of sun-rays

Direct 90° heating at Equator → more temperature

Slanting rays in polar areas → more absorption, reflection → less temperature

2Distribution of land & water

More specific heat of water → slow heat 2 slow to cool

Land heats & cools faster → causing difficult temperature

4Ocean currents

Warm ocean currents insure the temperature of surrounding area via very great effect: e.g., North Atlantic drift → insure relative temperature in western Europe

5Prevailing winds → On shore winds around currents can bring temperature to coastal lands: e.g., Humboldt current → Cold winds → asiity of do coastal desert

[Impact]

El- Nino & la- Ning

Planetary winds due to pressure difference caused by differential heating.

This uneven distribution of east heat on earth surface fuels the movement of winds (planetary winds) & oceans (ocean currents) to distribute temperature & moisture.

— Nidhi Goyal · AIR 91

180 words8 paragraphs

Diagram

Diagram showing Earth with sun rays hitting at different angles - showing 'Low' and 'More' labels, and a diagram showing 'Deflect', 'Surplus', 'Deflect' to illustrate differential heating

Comprehensive coverage of multiple factors affecting temperature distribution
Good use of examples (North Atlantic drift, Humboldt current)
Connection between temperature distribution and wind/ocean current circulation
Includes specific phenomena like El Nino and La Nina

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Topper

Nidhi Goyal

AIR 91

Subject & Paper

GS1GS1

Topic

Salient features of World's Physical Geography

Important Geophysical Phenomena

Factors Responsible for Uneven Temperature Distribution on Earth

Writing Stats

203

Total words

Paragraphs

Technical and structured

Tone

Linked PYQ

(b) Calculate the explicit cost of debenture for each of the following situations, assuming coupon rate of interest 10%, face value of debenture Rs.1,000, maturity 20 years: (i) If debentures are sold at a premium of 5% and floatation costs are 2%. (ii) If debentures are sold at a discount of 5% and floatation costs are 3%. The present value factor of an annuity of Rs.1 for 20 years and present value factor of Rs.1 for the 20th year are as under: For Re.1 - 9%, 10%, 11%; PV factor of Annuity for years 1-20: 9.129, 8.514, 7.963; PV factor for the 20th year: 0.178, 0.149, 0.124.

20M2014