Continent move by a.water eroding.b. conveyor-like belt of magma dragging plate ad continental c. Ring of fire.d.wind shifting crust
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Continents move by
a.water eroding.
b. conveyor-like belt of magma dragging continental plates
c. Ring of fire.
d.wind shifting crust
What is your answer?
http://www.factmonster.com/dk/encyclopedia/continents.html
The movement of continents is primarily caused by the process of plate tectonics, which involves the movement of Earth's rigid outer layer, known as tectonic plates. There are different mechanisms through which continents can be moved or influenced by plate tectonics. Let's explore each of the options you mentioned:
a. Water erosion: While water erosion can shape the surface of continents, it does not cause the movement of entire continents. Water erosion mainly occurs on the Earth's surface, gradually wearing away mountains, valleys, and other landforms. This process does not directly contribute to the movement of tectonic plates or continents.
b. Conveyor-like belt of magma dragging plate and continental: This mechanism is closest to the actual process of continental movement. The Earth's lithosphere, which includes the tectonic plates, floats on the semi-fluid layer of the mantle called the asthenosphere. The movement of the tectonic plates is driven by the convective flow of the underlying mantle. As hot magma rises in certain areas, it creates a conveyor belt-like motion that drags the tectonic plates along with it. This movement can lead to the shifting of continents over long time scales.
c. Ring of fire: The "Ring of Fire" refers to a major area in the basin of the Pacific Ocean where a large number of earthquakes and volcanic eruptions occur. It is essentially a circle of intense tectonic activity caused by the interaction of several tectonic plates. While the Ring of Fire is associated with significant tectonic activity, including subduction zones and volcanic arcs, it does not directly cause the movement of entire continents.
d. Wind shifting crust: Wind does not have a direct influence on the movement of tectonic plates or continents. Wind primarily affects the surface processes, such as erosion and transportation of sediments. However, wind does not have the strength or mechanism to shift the Earth's crust on a large scale.
In summary, the most accurate explanation for how continents move is the conveyor-like motion of the tectonic plates driven by the convective flow of magma in the asthenosphere. This process is known as plate tectonics and is responsible for the continual reshaping of Earth's surface over millions of years.