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using photovoltaic technology to harness the energy from the sun and convert it into electrical...
the movement of molecules across a membrane against the concentration gradient, from an area of...
when the subject of the sentence performs the action expressed by the verb, e.g. The dog bit...
levied at a certain rate per the value of the item, for example, 10% of the price (value) of the...
a state in which the body has become dependent on a chemical substance in order to function.
the process whereby a mixture of two or more different monomers react to form a polymer.
reactions in which two or more molecules react to form one molecule.