Answer:
B. Canada and Mexico
Explanation:
https://www.census.gov/foreign-trade/statistics/highlights/top/top1012cm.html
Answer:
D. In the mantle
Explanation:
The core of the Earth is extremely hot, and material in the mantle close to the core is heated
Answer:
The Red Sea and the Persian Gulf are parts of the Indian Ocean
Explanation:
A map for reference: