Question Q.4GS1GS1

[Not explicitly provided on page]

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 anglesthus differential heating

2Inclination of sun-rays

Direct 90° heating at Equatormore temperature

Slanting rays in polar areasmore absorption, reflectionless temperature

2Distribution of land & water

More specific heat of waterslow heat 2 slow to cool

Land heats & cools fastercausing difficult temperature

4Ocean currents

Warm ocean currents insure the temperature of surrounding area via very great effect: e.g., North Atlantic driftinsure 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.

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

Open original scan

Page 5

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