Within the upper-air westerly wind flow are great waving undulations
A) that were first described by Hadley, an 18th century English scientist.
B) known as Rossby waves that involve contact between cooler and warmer air masses.
C) that are unrelated to the jet stream.
D) that are called Hadley cells.

Question

Quizplus · Accepted Answer

The statement describes Rossby waves, which are large-scale atmospheric waves within the westerly wind flow. These waves involve the interaction between cooler and warmer air masses, and were named after Carl-Gustaf Rossby.

Within the Upper-Air Westerly Wind Flow Are Great Waving Undulations