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Author Question: Which of the following statements about biodegradable polymers is true? A) They will degrade ... (Read 138 times)

sam.t96

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on: Aug 27, 2018
Which of the following statements about biodegradable polymers is true?
 
  A) They will degrade quickly in a landfill.
  B) Thermosetting polymers are biodegradable, but thermoplastics are not.
  C) They often require specific temperatures or the presence of microorganisms in order to undergo degradation.
  D) Polyvinyl chloride is a biodegradable polymer.

Question 2

The fact that a heat pump requires energy to move heat from a colder object (the outside of a house) to a hotter object (the inside of the house) is a real life observation of which thermodynamic law?
 
  A) the first law
  B) the second law
  C) the third law
  D) the fourth law


BUTTHOL369

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Reply #1 on: Aug 27, 2018
Answer to Question 1

C

Answer to Question 2

B


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