Question

Which high-altitude wind system varies in speed based on its distance from the equator and plays a significant role in directing air masses across the globe?

polar winds
jet streams
currents at the equator
thermal currents

Answer 1

The high-altitude wind system that varies in speed based on its distance from the equator and plays a significant role in directing air masses across the globe is the **jet streams**. Jet streams are fast flowing, narrow air currents found in the upper levels of the atmosphere, primarily influenced by the Earth's rotation and temperature differences between the equator and the polar regions.