Question

The North American monsoon is generated by the seasonal wind shifts associated with:

a. the development of a summertime thermal low in Arizona.
b. the migration of the ITCZ.
c. the arrival of the polar jet.
d. the southward movement of the subpolar low.

Answer 1

The North American monsoon is caused by the development of a summertime thermal low in Arizona that brings seasonal rains to the region.

Step-by-step explanation:

The North American monsoon is generated by the development of a summertime thermal low in Arizona. A monsoon is recognized by the seasonal reversal of winds, which in North America, particularly affects the southwestern United States. During summer, the land heats up, creating a low-pressure zone that attracts moist air from the Gulf of California and the Gulf of Mexico, bringing significant rainfall. The North American monsoon usually starts in early July and lasts until mid-September, providing much-needed precipitation to the region.