The correct answer is Australia;
Australia is somewhat famous for thriving in opal mining.
Hope I could help, and good luck!
~Vinny:)
Answer:
1. Rio grande
2. Pacific Ocean
3. Gulf of Mexico
4. Yucatan Peninsula
5. Caribbean Sea
6. Sierra Madre Oriental
7. Sierra Madre Occidental
8. Baja California
9. Gulf of California
Explanation:
Answer:
The answer is Maysynram. Hope it helps!!!!
Explanation:
Answer: D. It can melt to a depth of a few meters in summer, then refreeze in winter.
Explanation:
Permafrost is ground which remains frozen for two or more years. Permafrost consists of soil, rock and sand fused together by ice. Mostly found in areas in high altitude, the Arctic, Antarctica, it is common in periglacial environments where temperatures are below freezing
.
The topmost layer of permafrost can melt in summer and refreeze in winter. This thawing and refreezing produces a ground pattern called columnar joints similar to the one formed when molten lava cools.
