Mexico Geography - note

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Geography - note:

note 1: strategic location on southern border of the US; Mexico is one of the countries along the Ring of Fire, a belt of active volcanoes and earthquake epicenters bordering the Pacific Ocean; up to 90% of the world's earthquakes and some 75% of the world's volcanoes occur within the Ring of Fire

note 2: the "Three Sisters" companion plants - winter squash, maize (corn), and climbing beans - served as the main agricultural crops for various North American Indian groups; all three apparently originated in Mexico but then were widely disseminated through much of North America; vanilla, the world's most popular aroma and flavor spice, also emanates from Mexico

note 3: the Sac Actun cave system at 348 km (216 mi) is the longest underwater cave in the world and the second longest cave worldwide, after Mammoth Cave in the United States (see "Geography - note" under United States)

note 4: the prominent Yucatan Peninsula that divides the Gulf of Mexico from the Caribbean Sea is shared by Mexico, Guatemala, and Belize; just on the northern coast of Yucatan, near the town of Chicxulub (pronounce cheek-sha-loob), lie the remnants of a massive crater (some 150 km in diameter and extending well out into the Gulf of Mexico); formed by an asteroid or comet when it struck the earth 66 million years ago, the impact is now widely accepted as initiating a worldwide climate disruption that caused a mass extinction of 75% of all the earth's plant and animal species - including the non-avian dinosaurs

Definition: This entry includes miscellaneous geographic information of significance not included elsewhere.

Source: CIA World Factbook - This page was last updated on December 7, 2019

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