The word in Latin for "the movement of different voices against one another" is <em>motet</em>. In Medieval times, the word was <em>motectum, </em>the word was also used to describe the phrase during the Renaissance era.
Volcano- A volcano Is in open part of the earth crust that forms lava, ash and, gases erupt from it.
Hot Spot- Hot spots are regions of high endemism.
Mantle Plume- The Mantle Plume is a area under the rocky outer layers of the Earth and that were the magma is hotter than surrounding magma.
Seamount- Seamount is an underwater Mountain that’s formed from volcano activity.
Guyot- An undersea isolated volcanic mountain on the sea floor that is flat-topped and caused by wave erosion.
