How does the poverty and political instability of mexico affect the united states
a. many mexicans come to the united states illegally
b. many mexican villages are devoid of working-age males
c. both a and b
d. none of the above

The correct answer is - C. both A and B.

Big portion of the rural Mexican population is poor and lives in terrible conditions, often being forced to work for the local mobs, and being paid little to nothing.

In search of better life, big portion of the rural population in Mexico is migrating towards the United States, more often than not illegally. In general, it is the men that migrate, while the women and children stay at home. The men send money to them while working in the United States, in order to be able to survive. Because of this trend, lot of Mexican villages are lacking men that are in their working-age.

it is very hard for the climatologists to precisely predict how will the global temperatures be changing so there's lots of models, some of which differ significantly, this is due to multiple factors, and probably the most important is the human activity.

humans have been a key factor in climate change around the globe since the start of the industrial revolution, and in the past few decades the consequences are becoming more obvious. there's lots of emission of pollutants in the atmosphere as well as changing the environment on the surface itself, so it's really hard to predict how will that go in the future because there's some countries that are reducing the damage and are going towards green energy, while others are stubbornly continuing with pollution and damages to the environment.