The reason is that current methods used to “calibrate” models often render them inaccurate. That's what Jonathan Carter stumbled on in his study of geophysical models.
If you want a more detailed explanation here’s a explanation from quizlet.
B.) The Andes would be the answer to this question.
A. They have the greatest oil reserves
The Nile River Delta. It's called that because of its resemblance to the
Greek letter delta and the letter looks like a triangle.
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