The ________ a Main-Sequence Star Is, the More Hydrogen It

question 88

Multiple Choice

The ________ a main-sequence star is, the more hydrogen it has to burn, and the ________ its main-sequence lifetime.

• A) more massive; shorter
• B) more massive; longer
• C) less massive; shorter
• D) less massive; longer
• E) larger; longer

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Definitions:

Clean Water Act

U.S. federal legislation aimed at reducing pollution and improving water quality in lakes, rivers, and streams.

Untreated Wastewater

Water that has been used in homes, industries, and businesses that has not undergone any cleaning or purification process.

Environmental Impact Statement

A document prepared to describe the effects for proposed activities on the environment.

Federal Permit

An authorization given by a federal agency allowing the permit holder to conduct certain activities that are regulated at the national level.