Question

FILL THE BLANK. "Nonsilicate minerals make up about ____ percent of Earth’s
crust."

Answer 1

One way to answer this question is to use the following formula:

Nonsilicate minerals percentage = 100 - Silicate minerals percentage

Silicate minerals are the most abundant minerals in Earth's crust, accounting for about 95% of its mass. Therefore, we can substitute this value into the formula and get:

Nonsilicate minerals percentage = 100 - 95

Nonsilicate minerals percentage = 5

Hence, we can fill in the blank with 5. The complete sentence is:

"Nonsilicate minerals make up about 5 percent of Earth’s crust."

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