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Geography

Hot spot

Geography; Geography

An area in the middle of a lithospheric plate where magma rises from the mantle and erupts at the Earth's surface. Volcanoes sometimes occur above a hot spot.

Hemisphere

Geography; Geography

Half of the Earth, usually conceived as resulting from the division of the globe into two equal parts of either north and south or east and west.

Hazardous waste

Geography; Geography

Unwanted by-products remaining in the environment and posing an immediate potential hazard to human life.

Hearth

Geography; Geography

The source area of any innovation. The source area from which an idea, crop, artifact, or good is diffused to other areas.

Hinterland

Geography; Geography

The area tributary to a place and linked to that place through lines of exchange, or interaction.

Horizon

Geography; Geography

A distinct layer of soil encountered in vertical section.

Humus

Geography; Geography

Partially decomposed organic soil material.

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