Question

A fast-flowing river of air that forms when two air masses of very different temperatures meet is called a A) el Niño. B) jet stream. C) trade wind. D) sea breeze.

Answer 1

I think the answer should be B.

Answer 2

A fast-flowing river of air that forms when two air masses of very different temperatures meet is called B. jet stream.
These types of streams are often meandering, and can be found on some planets, not only the Earth.