Earthquakes, volcanism, and mountain building are three of the most spectacular earth processes related to tectonic activity. Which statement justifies the occurrence of a number of volcanoes in the Pacific Ring of Fire?
A. The magma is most active in the peripheral areas of the Pacific Ocean Basin.
B. The peripheral areas of the Pacific Ocean Basin contain the boundaries of several plates where subduction takes place.
C. Earthquakes and tsunamis occurred when these volcanoes were formed, thus, changing the landscape.
D. The plate beneath the Pacific Ocean is constantly moving, thus, forming more volcanoes.
Answers
Answer:
b
Explanation:
as because in the Pacific ring of fire there are almost 400 volcanoes and it also has boundary leading to moving of plates and then tenders volcanic eruption
Answer:
The correct answer is B. The peripheral areas of the Pacific Ocean Basin contain the boundaries of several plates where subduction takes place.
Explanation:
Because tectonic plates are moving so much in the region, there are many volcanoes and earthquakes along the Ring of Fire. At convergent boundaries known as subduction zones, plates overlap around a large portion of the Ring of Fire. In other words, the plate above pushes the plate below or subducts it. Rock melts and condenses as it is subducted, creating magma. The presence of so much magma so close to the Earth's surface creates favorable conditions for volcanic activity. The boundary between the Pacific and North American Plates is a noteworthy exception. In this section of the Ring of Fire, plates can morph and slide past one another.
Thus, as stress builds up and is released in the Earth's crust, this type of boundary causes a lot of earthquakes.