Supervolcanoes are different from normal volcanoes. They aren't recognisable by a conical shape that you would imagine a volcano to be. These volcanoes form calderas which are huge craters in the ground after previous eruptions, which are so large that they are often only noticeable from the air above
The main vent is the main outlet for the magma to escape. Secondary vents are smaller outlets through which magma escapes. The crater is created after an eruption blows the top off the volcano
The correct answer is - B) wave erosion.
The beach erosion is a direct result of the wave action on the coastline. The waves are very powerful when it comes to erosion, and this is because they have big power, and also the chemical components of the water that are very effective too.
The sheer power of the waves contributes to the direct breaking of the rocks into smaller pieces over time, while the water itself, is reacting with the rocks on a chemical level and slowly decomposes them. As the rocks are getting smaller and smaller because of the erosion, the tiny fractions of sand particles are forming the beaches along the coastlines.
Increased slope steepness, increased water, decreased vegetation and earthquakes
The Colorado River runs through the grand canyon.
