The magma that rises out of them cools eventually, with some help from the water. eventually all the cooled magma builds up into an island.
<span>Erosion by rivers is a main valley-forming
process; other processes, such as movement of the earth's crust and
glaciers, also have an important part in some cases. The rate at which a
river deepens its valley depends on several factors.</span>
Move the decimal over two spaces to the left
.035
The equator and prime meridian meet closet to the continent of Africa.
Hope this helps! XD :)
