Major sources of income for the Mexican economy include all of the following except
a.
agriculture.
c.
the technology industry.
b.
tourism.
d.
petroleum extraction.
The mining and the manufacturing industry employs about 11% of the world force that accounts of about 23% of the Mexico's GDP and in which oil is the most important and provides about 30% of the Mexico export earning and thus about 5% of the oil is exported to the united states and it's controlled by a government agency known as the PEMEX. And Mexico accounts for about 7% of world reserves of oil.
