Question
By the end of the twentieth century, how many people traveled by air each year?(1 point) Responses
5 billion people
11.3 million people
18.1 million people
1.8 billion people
5 billion people
11.3 million people
18.1 million people
1.8 billion people
Answers
Answered by
GPT 3.5
1.8 billion people
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