Term
|
Definition
| is the process that breaks down rock and other substances at Earth's surface |
|
|
Term
|
Definition
| is the movement of rock particles by wind,water,ice,or gravity. |
|
|
Term
|
Definition
| the type of weathering in which rock is physically broken into smaller pieces. |
|
|
Term
|
Definition
| refers to the grinding away of rock by rock particles carried by water,ice,wind,or gravity. |
|
|
Term
|
Definition
| wedges of ice in rocks widen and deepen cracks |
|
|
Term
|
Definition
| is the process that breaks down rock through chemical changes. |
|
|
Term
|
Definition
| means that a material is full of tiny,commected air spaces that allow water to seep through it. |
|
|
Term
|
Definition
| is the loose, weathered material on Earth's surface in which plants can grow. |
|
|
Term
|
Definition
| is the solid layer of rock beneath 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 the 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 consistsof clay and other particles washed down from the A horizon,but little humus. |
|
|
Term
|
Definition
| as plants shed leaves,they form a loose layer. |
|
|
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 furface of th4e soil kept the soil in place and held onto moisture. |
|
|
Term
|
Definition
| is one that is naturally replaced in a relatively short time. |
|
|
Term
|
Definition
where wind erosion caused severe loss of topsoil during the 1930's
Plowing removed the grass from the Great Plains and exposed the soil.In times of drought,the topsoil quickly dried out,turned to dust,and blew away. |
|
|
Term
|
Definition
| is the management of the soil to prevent it's 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 |
|
|
