What is a body of air with generally uniform temperature and humidity that originates over the oceans?

Ocean Air Mass.

Explanation:

A body of air with generally uniform temperature and humidity usually originates over the ocean air mass and I got it right on USATESTPREP.

explanation:

i believe the primary and secondary sectors

by using  production possibilities graph.  opportunity costs are key expenses in financial matters and are utilized as a part of registering money saving advantage investigation of a venture. such expenses, be that as it may, are not recorded in the record books but rather are perceived in basic leadership by processing the money costs and their subsequent benefit or misfortune.