Answer:
Forensic drug chemists analyze samples of unknown materials including powders, liquids and stains to determine the chemical identity or characteristics of the compounds that make up the sample. Samples submitted as evidence in a drug-related case can contain one compound or a mixture of many compounds.
Explanation:
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Smooth er has less things inside of it and rough is more complex.
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The purpose of the egg cell donor is to supply eggs for others who are infertile and wish to have a child. The purpose of the egg cell donor is to supply eggs for others who are infertile and wish to have a child.