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Peridotite, quartz, and nickel are some of the most common compounds that make up Earth. Peridotite has a density of approximately 3.4 g/cm3; quartz has a density of approximately 2.65 g/cm3; and nickel has a density of approximately 8.9 g/cm3. Based on this information, which compound do you think is most common near Earth’s surface, and which do you think is most common near Earth’s core?

Answer :

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Answer: Quartz is probably most common at the surface, and nickel is probably most common near the core.

Explanation: sample answer on edmentum

Earth is made up of three main layers and we human beings live on the solid outer layer called the crust.

Which alloy is present in the core of earth?

The outer core is about 1,400 miles thick, and made up of mostly of a combination (called an alloy) of iron and nickel, along with small amounts of other dense elements like gold, platinum, and uranium. Quartz is probably most common at the surface.

These metals can be found on the surface of earth in solid form. In the outer core, metal present in a very hot liquid form between 7,000-9,000º F.

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