The mian reason cardenas nationalized mexican oil industry was to

Enable the country to get direct benefit from its vast supplies. Explanation: Cardenas decreed oil expropriation on March 18, 1938, creating Pemex (Petroleos Mexicanos), a state company that would be in charge of the exploitation.Jan 6, 2017

Explanation:

within these regions are all the major types of biomes in the world. a biome is a community of animals and plants spreading over an extensive area with a relatively uniform climate. some diverse biomes represented in north america include desert, grassland, tundra, and coral reefs.