The Formation of a Star Requires the Consideration of the Effects

question 63

Multiple Choice

The formation of a star requires the consideration of the effects of gravity and the energy from nuclear reactions and a star will form only when both the temperature and density are sufficiently high.In the birth of a star:

• A) gravity produces the initial required high temperature and density.
• B) nuclear reactions produce the initial high temperature.
• C) nuclear reactions produce the initial required high density.
• D) nuclear reactions produce the initial required high temperature and density.

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Definitions:

Hearing Aid

A device designed to amplify sound for individuals with hearing loss, improving their ability to communicate.

Moisture

The presence of a liquid, especially water, often in trace amounts.

Antibacterial Effect

The result achieved by agents that inhibit bacterial growth or kill bacteria.

Acid PH

A measure indicating a solution is acidic, typically having a pH value below 7, which denotes a higher concentration of hydrogen ions.