TOPIC: Conservation, environmental pollution and degradation, environmental impact
assessment.
6) The destructive power of Tsunamis is all because of the topography of the seafloor near the shore, and is bound to increase in the future. Discuss.(250 words)
Why this question
In a recent scientific research paper, it has been claimed that climate change will increase the destructive power of the tsunamis. It is pertinent under these circumstances to discuss about Tsunamis as well as the research findings.
Directive word
Discuss- This is an all-encompassing directive which mandates us to write in detail about the key demand of the question.
Key demand of the question.
The question wants us to write in detail about the tsunamis and their relationship with the topography of the seafloor and how it determines the destructive power of the tsunami waves. It also wants us to discuss how this destructive power is going to increase in the future.
Structure of the answer
Introduction- Write a few lines about the nature of tsunami waves and how they are caused.
E.g Tsunami waves are huge waves – generally on oceans, but sometimes in lakes or large rivers caused by sudden motions, which displace a large amount of water like an earthquake, a volcanic eruption or underwater landslide.
Body-
- Discuss how the wavelength, speed and wave-height of tsunami waves is influenced by the depth of the water and how on coming in contact with the seafloor near the shore the wavelength is decreased and wave height increases etc.
- Discuss the impact of global warming on the destructive power of tsunami waves. Mention the sea-level rise, which will lead to more inundation of the coastal areas and hitherto untouched areas, as well as mention the higher destruction potential of much weaker tsunami waves which would increase in future etc.
Conclusion– Based on your discussion, form a fair and a balanced conclusion on the given issue.
