Unit 4 Vocab APES HST

Front

Topsoil

Back

A horizon

Front

Ability of a surface to reflect light

Back

albedo

Front

Soft mantle layer where lithosphere floats.

Back

asthenosphere

Front

Global air movement patterns from unequal heating of Earth.

Back

Atmospheric convection current.

Front

Subsoil

Back

B horizon

Front

Least-weathered soil horizon beneath B horizon, similar to parent material.

Back

C horizon

Front

Process breaking down rock via chemical changes

Back

chemical weathering

Front

Average weather trends over time

Back

climate

Front

Tectonic plate boundary where plates collide.

Back

convergent

Front

Central part of the earth below the mantle

Back

core