Sound Waves in the Interstellar Medium

question 80

Multiple Choice

Sound waves in the interstellar medium

• A) cannot travel through the gas.
• B) travel so slowly that they are undetectable.
• C) can travel through the gas, but the very low density of the interstellar medium makes them inaudible.
• D) travel extremely quickly and are therefore very loud.
• E) can travel through the halo interstellar medium but not the disk of the galaxy.

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Infant

A child in the earliest period of life, particularly before they can walk; in legal contexts, often synonymous with a minor.

Adult

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Infant

A child in the early stages of life, but in legal terms, an individual who is not yet of legal age and therefore does not have full legal capacity.

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