Multiple Choice: Please select the best answer and click \"submit.\" Which of th

Question

Multiple Choice: Please select the best answer and click "submit." Which of the following describes sound waves Waves that require a medium and in which the vibrations are parallel to the motion of the sound Waves that do not require a medium and in which the vibrations are perpendicular to the motion of the sound Waves that do not require a medium and in which the vibrations are parallel to the motion of the sound Waves that require a medium and in which the vibrations are perpendicular to the motion of sound

Explanation / Answer

option B) Helium.

The first subatomic particles included protons, neutrons, and electrons. Though simple atomic nuclei formed within the first three minutes after the Big Bang, thousands of years passed before the first electrically neutral atoms formed. The majority of atoms produced by the Big Bang were hydrogen, along with helium and traces of lithium.

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