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INTEGRATED SCIENCE PRACTICE QUESTIONS

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EXPLOITATION OF MINERALS

1.

Sedimentary rocks are not resistant to weathering because, they

A.

are formed from molten matter.

B.

formed from other rocks.

C.

have lines of weakness between mineral aggregates.

D.

have lines of weakness between strata.

2.

Impurities found in bauxite are

A.

SiO₂ and FeCl₃.

B.

Fe₂O₃ and SiO₂.

C.

FeO and CaO.

D.

CaO and Fe₂O₃.

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