The Hydrogen in the Outer Layers of the Sun Cannot

question 89

Multiple Choice

The hydrogen in the outer layers of the Sun cannot undergo fusion because the

• A) hydrogen in the outer layers is fundamentally different from the hydrogen in the core.
• B) hydrogen in the outer layers is pure,and hydrogen must be mixed with helium,as it is in the core,in order to undergo fusion.
• C) temperature in the outer layers is too low to allow the hydrogen nuclei to come close enough together to undergo fusion.
• D) hydrogen atoms in the surface layers are not ionized,as they are in the core,and ionization is one requirement for nuclear fusion.

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Definitions:

Environmental Standard

Rules and criteria set by governmental bodies to protect the environment by controlling pollution levels and resource use.

Production Process

The activities, operations, and methodologies used in transforming raw materials into finished goods or services.

Market-Determined Quantity

The quantity of a good or service established through the interaction of supply and demand in a marketplace.

Coal Mine Pollution

Environmental damage caused by the mining and processing of coal, including air and water pollution.