What Fraction of the Mass of Earth Is Made Up

question 13

Multiple Choice

What fraction of the mass of Earth is made up of the elements hydrogen and helium?

• A) about 70%
• B) 2%
• C) much less than 1%
• D) 98%

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Truth-In-Lending Act

A U.S. federal law designed to protect consumers in their dealings with lenders and creditors, ensuring clear disclosure of loan terms and costs.

Cease-And-Desist Order

An administrative or judicial order prohibiting a person or business firm from conducting activities that an agency or court has deemed illegal.

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An independent agency of the United States government, established to prevent unfair business practices and promote consumer protection.