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.
Answer:
C
Explanation:
It was in a quizlet. Hope this helps!
Answer:
That would be a political map because it is showing you the variety of political affilliation,
Explanation:
Answer:
A nation that typically has higher average income, slow population growth, and many different types of economic activity
Explanation:
This is because a developed nation would be a nation that has been founded for more than 300 years (I think). They would have more population and economic activity due to the fact that it has been founded for a very long time. Meaning that growth and economic activity have been going on for centuries.
