The earth was formed at approximately 4.5 Billion BC
Answer:im uma say c educated guess
Explanation:
The Sierra Madre del Sur range and the Sierra Madre Occidental. The Sierra Madre Occidental is a major mountain range system of the North American Cordillera, that runs northwest–southeast through Northwestern and Western Mexico, and along the Gulf of California. <span>The Sierra Madre del Sur joins with the </span>Eje Volcánico Transversal<span> (Trans-Mexican Volcanic Belt) of central Mexico in northern Oaxaca.
Sites: wiki </span>
Answer:
B. Nuclear
Explanation:
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