The correct answer is b) Emergent Coast.
An emergent coast is a coastline that is formed when the land rises relative to the sea level. This can happen due to tectonic uplift, or the deposition of sediment. Emergent coasts are characterized by their steep cliffs, which are formed as the waves erode the land.
A submergent coast is a coastline that is formed when the sea level rises relative to the land. This can happen due to melting glaciers, or the sinking of the land. Submergent coasts are characterized by their low-lying land, which is often marshy or swampy.
A volcanic coast is a coastline that is formed by the eruption of volcanoes. Volcanic coasts are characterized by their black sand beaches, which are made up of volcanic ash.
A neutral coast is a coastline that is not classified as either emergent or submergent. Neutral coasts are typically found in areas where the land is rising and falling at the same rate as the sea level.
Kerala’s coastline is classified as an emergent coast because the land in Kerala is rising relative to the sea level. This is due to the fact that Kerala is located on the western coast of India, which is a tectonically active region. The Indian Plate is moving northward, and this movement is causing the land in Kerala to rise.