Multiple Choice
Sand is composed mostly of ____ and is used to make glass, bricks, and concrete for the construction of roads and buildings.
A) shells, skeletons, and other remains of dead aquatic organisms
B) aluminum
C) phosphate salts
D) silicon dioxide (SiO2)
E) calcium carbonate, or CaCO3
Correct Answer:
Verified
Correct Answer:
Verified
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