Which of the following is true of the jet streams?
A)they extend through the vertical extent of the atmosphere.
B)they average 1600-4800 km wide.
C)they are strongest in summer.
D)wind speeds in the jets can exceed 300 km · hr⁻¹.
E)there is only one jet stream present above North America.

Question

Quizplus · Accepted Answer

Wind speeds in the jet streams can exceed 300 km · hr⁻¹. This is because jet streams are fast-moving (up to 500 km/hour) and narrow air currents found in the upper atmosphere.

Answer: B
 Jet streams are typically 1600-4800 km wide. They are long, narrow bands of wind that stretch from the west to east and are found in the upper atmosphere.

Answer: E
 This statement is false. There are usually two or more jet streams present above North America: a polar jet stream and a subtropical jet stream. These jet streams can have a significant impact on weather patterns and can affect the movement of storms and weather systems.

Therefore, the correct answers are D and B.

Which of the Following Is True of the Jet Streams