A temperature scale where water at sea level has a freezing ...
A slow earthquake is a discontinuous, earthquake-like event ...
Mount Pelée, standing more than 4,500 feet high on the ...
Mount Banahaw is an active volcano on Luzon in the ...
Lava refers both to molten rock expelled by a volcano ...
Mount Pinatubo is an active stratovolcano located on the ...
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