A lahar is a type of mudflow or debris flow composed of a ...
In seismology, the depth of focus refers to the depth at ...
Lake Vostok is the largest of more than 140 subglacial ...
Dead Mountain is a mountain located in the northern Urals ...
Mount Iriga is one of the active volcanos in the ...
The Yarrow is a medicinal herb, which is plentiful on the ...
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