Construction of physical structures to protect coasts from erosive power of waves
The poles receive more direct sunshine so it has to do with the angle that the light hits. The Earth is round and when light hits it the light wraps around the earth. At the poles the light is very stretched and at the equator it is very direct hence it is hotter at the poles.
<span>limestone is a hard sedimentary rock, made mostly of calcium carbonate or
dolomite, and it's used as building material & in the making of cement.</span>
I am pretty sure it it central Africa
