I think you forgot to give the options along with the question. i am answering the question based on my knowledge and research. "Panama's sole control over the Panama Canal" is <span>one of the main factors attributed to Panama's booming economy. I hope that this is the answer that has come to your help.</span>
Answer:
convection currents are the result of differential heating
The correct answer is: [B]: "sludge" .
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