<span>A mantle tuft underlies Iceland, of which the hotspot is believed to be the surface articulation. This upgrades the volcanism as of now caused by plate partition, both at the focal point of the island and at the Reykjanes edge toward the southwest of Iceland's principle volcanic zone. The crest is accepted to be very tight, maybe 100 km over, and reaches out down to no less than 400– 650 km underneath the Earth's surface, and perhaps down deeply mantle limit.</span>
They are believed to cause divergence of lithospheric plates at the <span>mid atlantic ridge </span><span> The currents reallocate heat from a certain place to another through mass motion of fluid (such as molten rock or water), The difference in temperature between core and lithosphere material generate enough force for the divergence to happen.</span>
The Earth’s magnetic field is created by the rotation of the Earth and Earth's core. It shields the Earth against harmful particles in space. The field is unstable and has changed often in the history of the Earth.
The southern Greenland Vikings numbering 5000 at their peak never gave up their old way of lifestyle and did not adopt that of the Northern Inuits who arrived a century later after them.
The study suspects that the climate factors became dominant and they were destroyed by the shifting nature of mother earth hence they starved to death and could not adapt to the present change in weather patterns this society collapsed.
Some theories say soil grazing and over-exploitation of land lead to the effect of black deaths and the creation of ice age. It indicated that the number of fertile women dropped and thus population could not sustain itself.
