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Multi-word Results
| Civilian Conservation Corps |
the New Deal program in the U.S. (1933-42) that provided conservation work for the unemployed during the Great Depression, through activities such as constructing and maintaining buildings and trails for state and national parks. |
| conservation of energy |
a principle of physics that asserts that the total energy in a closed system remains constant regardless of changes in the system. |
| conservation of matter |
a principle of physics that asserts that the total matter in a closed system remains constant, regardless of changes in the system. |
| soil conservation |
a method, such as crop rotation or contour farming, to protect fertile topsoil from erosion or other damage. |
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