Concept 4 Quiz

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List the most important elements and rock-forming minerals that compose Earth's continental crust.

This activity contains 10 questions.

Which of the following is not one of the eight most abundant elements in Earth's continental crust?

calciumaluminumhydrogenironoxygen

Oxygen comprises about _________ percent by weight of Earth's continental crust.

2747631285

	Eight minerals make up 98% of the crust.
	Eight minerals make up 98% of the crust.
	True False

The two most abundant elements in Earth's continental crust are

oxygen and calciumoxygen and aluminumoxygen and ironoxygen and siliconoxygen and potassium

Which major nonsilicate rock-forming mineral is the primary constituent of the rock limestone?

calcitefeldsparquartzgypsumnone of the above

Which of the following is the least abundant of the eight rock-forming elements that make up most of the continental crust?

aluminumcalciumoxygenironmagnesium

	Nonsilicates represent the largest group of minerals found in crustal rocks.

	True False

Which of the following is not a nonsilicate group?

single "native" elements (e.g., Au)sulfideshalidescarbonatesnone of the above

Which of the following groups is the most abundant in the crust?

halidescarbonatessilicatessulfidesnonsilicates

	Iron and magnesium are the two most abundant elements in silicate minerals.

	True False

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