The formation of polyethylene is an example of which of the following?

A) chain-growth polymerization
B) oxidative polymerization
C) step-growth polymerization
D) none of these

A

Environmental & Atmospheric Sciences

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Aristotle asserted that motion was characterized by

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Which of the following is not a Boolean connector?

A. XOR B. AND C. AT LEAST D. OR

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Cycads evolved during the Triassic

Indicate whether the statement is true or false

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________ is defined as a mineral's resistance to scratching

A) Hardness B) Cleavage C) Fracture D) Streak

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