Examlex
Neandertals made clothes, developed elaborate tools, and hunted reindeer, mammoths, and woolly rhinos in order to survive in the cold European climate.
Oceanic Crust
The part of the Earth's crust that underlies the ocean basins, composed primarily of basalt and gabbro, and is denser than continental crust.
Reversed Magnetic Polarity
A condition where the magnetic north and south poles swap positions, a phenomenon observed in the Earth's geological history.
Compass Needle
The magnetized pointer on a compass that aligns itself with the Earth's magnetic field to indicate the direction of magnetic north.
Seamounts
Underwater mountains formed by volcanic activity, not reaching the ocean's surface, and often a hotspot of marine life.
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