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Describe the significance of the following properties in assessing the quality of compost: con- centration of carboxyl groups; carbon: nitrogen ratio; total phosphorus concentration; concen- tration of trace metals.
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The atoms of a solid aluminum can are close together, vibrating in a rigid structure. if the can is warmed up on a hot plate, what happens to the atoms?
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An alpha particle is: a hydrogen atom a nucleus of helium two neutrons an electron
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Describe the significance of the following properties in assessing the quality of compost: con- cen...
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