Question Q.17Briefly explain, differentiateGS1GS1

Briefly explain the process of tide formation and differentiate between tides and waves. (15 marks, 250 words)

Introduction

Tides are geological phenomenon formed as a result of altering positions of astronomical bodies primarily Earth, Sun and moon.

19 words

Main Body

Process of tide formation:

(I) Spring Tide: As moon revolves around the Earth and both around the Sun, when all three come in a single line, spring tides are formed. (Diagram showing Situation 1 and Situation 2 with Moon, Earth, Sun alignment) (continues on next page)

(II) Neap Tides: When Sun, Earth and Moon are at right angles. Neap tides are shallower than spring tides.

Differentiation between Tides & Waves

TIDES:

Primary driving force is pull of moon and sun

Periodic phenomenon depending on position of celestial bodies

WAVES:

Primary forces include Sun insolation, gravity, Coriolis force and wind action.

Localised phenomenon showing great variance (continues on next page)

TIDES:

Can be predicted before hand with great accuracy

Not impacted majorly by local events

WAVES:

Difficult to predict as localised factors can vary quickly Eg: Wind

Can be caused due to local eruption, blast, etc. Eg: Waves upto 15m high in 2004 tsunami.

161 words6 paragraphs8 bullet points

Conclusion

Thus winds and tides are two geological phenomenon caused by different factors and have different characteristics.

16 words

Diagram

Two situations showing alignment of Moon, Earth, Sun for spring tide formation

Clear diagrams
Good conceptual explanation

Open original scan

Page 41

Topper

BHAVESH JALPAN

AIR 1282024

Subject & Paper

GS1GS1

Topic

Geography

Physical Geography

Tides and Waves formation

Writing Stats

196

Total words

Paragraphs

Bullets

Analytical, point-wise

Tone