Which of the following is best associated with a mt air mass?

a relief from warm humid summer conditions in the us northeast
b hot, dry summer weather in the us southwest
c cold, dry conditions in winter in the us southeast
d flooding rains in winter along the southern part of the us pacific coast

B hot, dry summer weather in the US southwest

Explanation:

developed and developing countriescountries are divided into two major categories by the united nations, which are developed countries and developing countries. the classification of countries is based on the economic status such as gdp, gnp, per capita income, industrialization, the standard of living, etc. developed countries refers to the soverign state, whose economy has highly progressed and possesses great technological infrastructure, as compared to other nations.