_____ are swiftly flowing air currents, hundreds of miles long, less than several hundred miles wide, and less than a mile thick.

A(n)______ emerges from the cloud and propagates towards the ground in a series of small steps. It is mostly invisible to the human eye.

Because the variation of sea-level pressure is small in the tropics, Meteorologists examine _______ instead.

_____ is defined as the cool phase of the ENSO cycle.

______ lightning is from a distant thunderstorm. No thunder is heard because the sound wave dissipates.

Winds around an area of surface high pressure blow in what direction?

The ______ scale is used to classify the strength of a hurricane.

What type of thunderstorms feed off a tilted and rotating updraft and are responsible for significant tornadoes and for very large hail?

Which of the following reason is given in the text and lecture for why someone might support a stronger role for states in our federal system?

Syneisactics taught that Christian men and women could _____.