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Which of the following is not an example of a natural polymer?
Q9: Match the word in Column 1 to
Q43: Before the 20th century,all fibers were:<br>A) Natural.<br>B)
Q44: What is the most commonly used type
Q47: Two commonly used _ tests for blood
Q53: The most difficult drug addiction to overcome
Q54: In Western countries,the most heavily abused drug(s)is/are:<br>A)
Q56: The presence of _ indicates that a
Q66: If the zone of strain has been
Q79: Alcohol that is not oxidized is expelled
Q87: Which is NOT considered a porous surface?<br>A)