Earth Science, Geologic Time & Fossils

Polar Anticyclone

meteorology

Scaphites

fossil cephalopod genus

Basilosaurid

fossil mammal

Helland-Hansen, Bjørn

Norwegian oceanographer

Archosaurus

fossil reptile genus

Hail

meteorology

Mud Volcano

Global Warming

Causes, Effects, Solutions, & Facts

Gradient Wind

atmospheric science

Aucella

fossil mollusk genus

Bomb

volcanic ejecta

Mica

Structure, Properties, Occurrence, & Facts

Air Mass

meteorology

Gaylussite

mineral

Melilite

Properties & Facts

Appleton Layer

atmosphere