What is the most abundant fossil fuel?
a. oil
b. wood
c. gas
d. coal

D. Coal.

Coal is the most abundant fossil fuel. It is found most abundantly in the United States of America. It was said that coal reserves can are around 909 billion tonnes, which sustaining the same rate of usage, can be used for more than 100 years.

The answer is false,  hope my answer is : )

Conflicts arising from drug cartels and goverment corruption is an issue that would most likely be considered as mexico's most challenging problem of today. the correct option among all the options that are given in the question is the third option or option "c". this problem has continued for a very long time.