The pronoun <em>what </em>is used as an interrogative pronoun. These pronouns are used to ask questions usually.
The first option of "friction and air resistance being the reason for him to slow down
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1. she went to africa on a special project. it was to learn more about the chimpanzee.
Answer:
worst news means very very bad news.
Explanation:
you heard the worst news of your life means:the news you heard has the worst things.
this is just an example.