What are the three major wind systems? a. jet stream, prevailing westerlies, and intertropical convergence zone b. jet stream, horse latitudes, and trade winds c. polar easterlies, prevailing westerlies, and trade winds d. polar westerlies, prevailing easterlies, and trade winds

The correct answer is - C. Polar easterlies, prevailing westerlies, and trade winds.

These are the three dominant types of winds on our planet. They are influenced by multiple factors, such as the movement of the Earth and the ocean currents. In general they have a constant direction of movement  and are occupying certain places of the planet by which they have also gotten their names.

The polar easterlies are winds that are dominant around the poles and their closer surrounding area.

The prevailing westerlies are dominant in the mid-latitude places on our planet (between the polar easterlies and the trade winds).

The trade winds are dominant winds at the Equator and its closer surrounding areas.

c. wright mills's sociological imagination suggest investigating to explain this increase?

for many centuries there were important factors which the economies of the muslim empires developed increasingly. they applied economic procedures in production, investment, finance, taxation and property. they used to tax certain goods (for example: harvest), they charged interest on money lent, they signed contracts with merchants; they relied on a common currency, and they used checks as well as promissory notes. with the money collected by means of taxation, the government provided the needy with an income. in addition, trading networks covered huge distances, so far regions started to have contact and exchange goods. this trade network covered areas of asia, africa and europe.