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chlorofluorocarbons (CFCs) are organic compounds that contain carbon, chlorine and fluorine.
simple chemical substances needed by the body in relatively small amounts for normal growth and...
minute pores in the epidermis of a leaf or stem which allows for movement of gases and water...
neurons that have two outgrowths coming directly from the cell body.
an organic compound that always contains the elements carbon, hydrogen, oxygen and nitrogen and...