According to Nostrand, what is an area wherein new basic cultural systems and configurations are developed and nurtured before spreading vigorously outward to alter the character of much larger areas

Culture hearth

Explanation:

Culture hearth is defined as the area where civilization took place. This form of civilization is usually then spread to other parts of the world through the inhabitants or media.

According to Nostrand, an area wherein new basic cultural systems and configurations are developed and nurtured before spreading vigorously outward to alter the character of much larger areas is known as Culture hearth.

two jet streams that directly affect the formation of weather in the continental part are a polar jet and a subtropical jet. they are responsible for the transportation of weather systems, which directly affect people. the polar front is the boundary between cold air from the north pole and warmer equatorial air. both the polar jet and the subtropical jet blow from the west to the east, and follow the boundary between cold and warm air.

the strongest jet streams are polar jets, while subtropical jets are somewhat weaker.

the right answer is c. the polar jet stream is generaly stronger than the subtropical jet stream.