HURRAH WITH THE 40TH ARTICLE....
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pratap nagar
nagpur
24th april 09
Poles and Volcanoes
this article includes a discussion about the poles of the earth..
1] what are the poles
never get confused with the street pole and the poles of the earth..
if we consider a circle three dimensionally we get that it has no poles. the main reason is that a circle is curved at each part. but the earth is not a circle..it is a geoid. the meaning of geoid is
because of this we have a pole.
the sun's rays are perpendicular to the equator. even in both the equinoxes. so the equator is hot and poll is cold as the sun's rays dont reach there
as in the previous articles,i said in case of pluto,when it is near the sun,the ice on its surface sublimes, and when atmosphere falls down.. in similar case, what about the earth.similar thing happens,as pole gets less heat,it is always cold. so on the surface of the earth,some area is hot and some is cold with icebergs and glaciers on surface. as this is,in the polar region,icebergs or glaciers exert as pressure on the surface even when they went. as a result of this,there is an imbalance inside the surface of the earth. so to stabilize it, the molten magma ruptures out from the areas on the surface of the earth,where there is a volcanic hill.. this we call as the volcanic eruption and this is the reason for it.
Akshay Deoras
