Answer:
As you increase in elevation, there is less air above you thus the pressure decreases. As the pressure decreases, air molecules spread out further (i.e. air expands) and the temperature decreases. If the humidity is at 100 percent (because it's snowing), the temperature decreases more slowly with height.
Biology.......................
Mexico has the greatest number of diversity of animals and plants. That's why its an megadiverse country.
I think this slogan meant that land reform will be given to farmers in the agrarian sector. In The Mexican Revolution, Diaz was not able to breach the gap between the rich landowners and poor farmers in Mexico. Because of this, Madero had challenged Diaz through presidential election