Question

drag the missing word into place
airplanes can receive a boost by flying in a when they
are traveling west to east.
convection
jet stream
trade wind

Explanation:

Jet streams are fast - flowing, narrow air currents in the atmosphere. When airplanes travel from west to east, flying in a jet stream can give them a boost as the jet stream moves in a generally eastward direction. Convection is a process of heat transfer in fluids (liquids and gases) due to density differences. Trade winds are steady winds that blow towards the equator from the northeast in the Northern Hemisphere and from the southeast in the Southern Hemisphere. They are not the main factor for an east - ward boost for airplanes compared to jet streams.

Answer:

jet stream