What is wind shear? a. when wind is moving extremely fast in one direction b. when wind is moving with a circular motion c. when wind direction or wind speed changes with altitude d. when two winds are moving very quickly upwards?

Rah is completing a school project on the expansion of fast food restaurants across the united states. she finds a map that shows a clear pattern of restaurants beginning in the east and expanding west. this map was most likely created using the technology of