Question Q17GS3GS3

Enumerating different types of tides highlight their significance. Also, explain how tides are different from waves.

Main Body

Tides are the rise and fall in the sea level due to certain factors. These occur due to affect of gravitational forces of moon and the sun and their impact on seas. Different types of tides are:- i Diurnal tide:- There are variations in tides in the day. There are usually one-high and one-low tide in the day. ii Spring Tide:- when the sun, moon and the earth align in a straight line – the tides are straight line – the tides are at the maximum. It happens during new moon and full moon nights.

iii Neap Tide: This occur when the sun, moon and earth are not side aligned. It forms a low tide. Significance: i Helps in generation of electricity through tidal energy. ii Material from the sea is collected over the coast. - helps cleaning up the seas - provide some useful resources - provide nutrients to the fishes collected from land. iii Helps in cleaning up of the beaches. iv Inter-tidal zones are rich in bio diversity – edge effect. Eg Estuaries. Tides are different from waves in the following ways:- i Tides are formed due to gravitational forces whereas waves are formed due to rotation and effect of wind on the sea surface. ii Waves do not lead to change in sea level. iii Waves are constants throughout the year and few without any faux. iv Waves help in the movement of ships.

— ADITYA VIKRAM AGARWAL · AIR 9

238 words1 paragraphs

Conclusion

Waves and tides are geographical phenomenon impacting humans since ages. However, the impact of climate change and subsequent sea level rise is risking livelihood of coastal population.

27 words

Diagram

Diagrams showing Spring Tide and Neap Tide with positions of Moon, Earth, and Sun.

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Topper

ADITYA VIKRAM AGARWAL

AIR 92024

Subject & Paper

GS3GS3

Topic

Biodiversity and Environment

Coastal Ecosystem

Tides and their types

Writing Stats

265

Total words

Paragraphs

informative-technical

Tone

Linked PYQ

As a senior officer in the Ministry, you have access to important policy decisions and upcoming big announcements such as road construction projects before they are notified in the public domain. The Ministry is about to announce a mega road project for which the drawings are already in place. Sufficient care was taken by the planners to make use of the government land with the minimum land acquisition from private parties. The compensation rate for private parties was also finalized as per government rules. Care was also taken to minimize deforestation. Once the project is announced, it is expected that there will be a huge spurt in real estate prices in and around that area. Meanwhile, the Minister concerned insists that you realign the road in such a way that it comes closer to his 20-acre farmhouse. He also suggests that he would facilitate the purchase of a big plot of land in your wife’s name at the prevailing rate which is very nominal, in and around the proposed mega road project. He also tries to convince you by saying that there is no harm in it as he is buying the land legally. He even promises to supplement your savings in case you do not have sufficient funds to buy the land. However, by the act of realignment, a lot of agricultural lands has to be acquired, thereby causing a considerable financial burden on the government, and also the displacement of the farmers. As if this is not enough, it will involve cutting down of a large number of trees denuding the area of its green cover. Faced with this situation, what will you do? Critically examine various conflicts of interest and explain what your responsibilities are as a public servant.

20M2018Critically examine