For a given medium such as air, sound has a slower speed at lower temperatures.
Given the fact that:

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Answer the question:


Ivan yells across a canyon in the morning when it is cold and again later in the afternoon when it is hot. During which time did his voice travel the fastest morning or afternoon?
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multiple-choice question answering
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For a given medium such as air, sound has a slower speed at lower temperatures.
<|task|>

Given the fact that:

{{context}}

Answer the question:


Ivan yells across a canyon in the morning when it is cold and again later in the afternoon when it is hot. During which time did his voice travel the fastest morning or afternoon?
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afternoon