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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.