Mount Pelee is an active volcano at the northern end of the ...
A volcano is an opening, or rupture, in the surface or ...
A fracture is any separation in a geologic formation, such ...
The Yarrow is a medicinal herb, which is plentiful on the ...
Mount Banahaw is an active volcano on Luzon in the ...
Originated in Sydney in 2007, Earth Hour is a global event ...
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