Mesoamerica is different from <span>Central America.
</span>Mesoamerica<span> is referring to a region up to the North of Mexico. In the South-West, it also covers the nowadays states of Belize.
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Hope this helps :)
A. They have the greatest oil reserves
An enclave is a territory or country with boundaries that are completely within the boundaries of another country. Lesotho is a common example, as it is completely surrounded by South Africa. An exclave is a portion of a country that is separated geographically from the country's mainland. Gibraltar, located on Spain's coast, is an exclave of the United Kingdom. Kaliningrad is an exclave of Russia.
the first plants and anthropodes appear on land approximately about 470 million years ago