conservation

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1-11 of 11 possibilities

Definition/MeaningWord/Phrase
federal department that administers programs that provide services to farmers (including research and soil conservation and efforts to stabilize the farming economy); created in 1862 Agriculture , Agriculture Department , Department of Agriculture , USDA
United States physicist (born in China) who collaborated with Tsung Dao Lee in disproving the principle of conservation of parity (born in 1922) Chen N. Yang , Yang Chen Ning
official conservation of trees and soil and rivers etc. conservancy
farm implement used to break up the surface of the soil (for aeration and weed control and conservation of moisture) cultivator , tiller
United States federal department charged with conservation and the development of natural resources; created in 1849 Department of the Interior , DoI , Interior , Interior Department
international organization that works for environmental conservation and the preservation of endangered species Greenpeace
branch of geology that studies water on the earth and in the atmosphere: its distribution and uses and conservation hydrology
United States physicist (born in China) who collaborated with Yang Chen Ning in disproving the principle of conservation of parity (born in 1926) Lee , Tsung Dao Lee
conservation of petroleum resources oil conservation
machine that can continue to do work indefinitely without drawing energy from some external source; impossible under the law of conservation of energy perpetual motion machine
conservation of water resources water conservation
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