WEATHERING Crossword

The thick mass of tough roots at the surface of the soil.
Process that removes rock and other substances at earths surface
The breaking down of rock particles by wind, water, ice or gravity.
This LONG WORD states that what has happened in the past is happening today
When water seeps through the cracks of rocks, and freezes and expands over time.
The process in high water combines with oxygen and forms rust.
Soil that is made up of clay, sand, and silt.
The measurement of how fertile soil is.
A dark colored organic material in soil.
Solid layer of rock beneath the soil.
An organism that break down dead organisms into smaller pieces.
Anything in the environment that humans use.
When farmers plow fields along the curves of a slope.
When farmers plant different crops each year.
The force that moves rock and other materials downhill.
The most destructive kind of mass movement.
When water continuously flows down its own channel along a slope.
A stream or river that flows into a larger river.
Prices of rocks and soil or the remains of plants and animals.
A rock that allows water to seep through it.
The process that breaks down rock through chemical changes.
When rock is physically broken into smaller pieces.