The correct answer is: d) All of the above.
Coastal erosion is the process of land being worn away by the action of waves, tides, currents, and wind. It is a natural process that has been occurring for millions of years, but it is being accelerated by human activities such as sand mining and sea level rise.
Cyclones and storm surges are a major cause of coastal erosion. When a cyclone makes landfall, it can cause high winds and waves that can erode the coastline. Storm surges are a rise in sea level that can occur during a cyclone. They can cause flooding and erosion of the coastline.
Human activities such as sand mining can also contribute to coastal erosion. Sand is used in a variety of construction projects, and sand mining can remove large amounts of sand from the coastline. This can weaken the coastline and make it more susceptible to erosion.
Sea level rise is another major cause of coastal erosion. As the Earth’s climate changes, sea levels are rising. This can cause flooding and erosion of the coastline.
All of these factors are contributing to coastal erosion along Tamil Nadu’s coastline. The state government is taking steps to address the problem, but it is a complex issue that will require a long-term solution.
Here are some additional details about each of the options:
- Cyclones and storm surges: Cyclones are tropical storms that form over warm ocean waters. They can cause high winds, heavy rains, and storm surges. Storm surges are a rise in sea level that can occur during a cyclone. They can cause flooding and erosion of the coastline.
- Human activities like sand mining: Sand is used in a variety of construction projects, and sand mining can remove large amounts of sand from the coastline. This can weaken the coastline and make it more susceptible to erosion.
- Sea level rise: As the Earth’s climate changes, sea levels are rising. This can cause flooding and erosion of the coastline.