Multiple Choice
Gypsum board is one of the best materials for fire protection because
A) it is noncombustible.
B) each molecule of gypsum contains two molecules of carbon dioxide that retard the progress of fire.
C) each molecule of gypsum contains two molecules of water that retard the progress of fire.
D) it is heat- treated during its manufacture.
Correct Answer:
Verified
Correct Answer:
Verified
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