Answer:
the speed of light in glass is slower than the speed of light in space
The writing can be made more precise by revising the underlined phrase by either: created powerful speeches, or by crafted meaningful speeches.
<h3>What are speeches?</h3>
Speeches are the ability that can express ones feelings and thoughts by the way of words those are framed in such a manner that are understood by the listeners easily.
Therefore, revising the above mentioned words like created powerful speeches, crafted meaningful speeches, will make the speech more precise.
Learn more about speech, here:
brainly.com/question/3743745
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