The Early Differentiation of the Earth into a Mantle and a Core

question 13

Multiple Choice

The early differentiation of the Earth into a mantle and a core was created by ________________.

• A)gravitational accretion of iron-rich particles in the core,followed by silicate-rich particles in the mantle
• B)nuclear fission in the center of the Earth,which converted hydrogen and helium to iron
• C)
• The buildup of heat and the melting of iron which was pulled by gravity to the center of the Earth

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Oral Agreement

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Statute of Frauds

A legal concept that requires certain types of contracts to be executed in writing and signed by all parties involved, to be enforceable.

Oral Contract

An oral contract is an agreement between two or more parties that is spoken and not written down, yet is legally binding.