Term
|
Definition
| is the process that breaks down rock and other substances at earths surface. |
|
|
Term
|
Definition
| is the movement of rock paticles by wind, water, ice or gravity |
|
|
Term
| physical-mechanical weathering |
|
Definition
| the type of weathering in which rock is physically broken down into smaller pieces |
|
|
Term
|
Definition
| refers to the grinding away of rock by rock particles carried by water ice wind or gravity |
|
|
Term
|
Definition
| when the ice melts the water seeps deeper into the cracks |
|
|
Term
|
Definition
| is the process that breaks down rock through chemical changes |
|
|
Term
|
Definition
| means that a material is full of tiny connected air spaces that allow water to seep through it |
|
|
Term
|
Definition
| is the loose weathered material on earths surface in wich plants can grow |
|
|
Term
|
Definition
| is the solid layer of rock beneth the soil |
|
|
Term
|
Definition
| is a dark colored substance that forms as plant and animal remains decay |
|
|
Term
|
Definition
| soil that is made up of about equal parts of clay sand and silt |
|
|
Term
|
Definition
| is a layer of soil that differs in color and texture from layers above or below it |
|
|
Term
|
Definition
| a crumbly dark brown soil that is a mixture of humus clay and other minerals |
|
|
Term
|
Definition
| usually consists of clay and other particles washed down from the a horizon but little humus |
|
|
Term
|
Definition
| are the organisms that break the remains of dead organisms into smaller pieces and digest them with chemicals |
|
|
Term
|
Definition
| the thick mass of tough roots at the surface of the soil |
|
|
Term
|
Definition
| is one that is naturally replaced in a relatively short time |
|
|
Term
|
Definition
| was an area where wind erosion caused severe loss of topsoil during the 1930's |
|
|
Term
|
Definition
| is the managemnt of soil to prevent its destruction |
|
|
Term
|
Definition
| is the practice of plowing fields along the curves of a slope |
|
|
Term
|
Definition
| disturbs the soil and its plant cover as little as possible |
|
|
Term
|
Definition
| as plants shed leaves they form a loose layer |
|
|
