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
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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.
1 .federalism is defined as a system of government where there is one strong,central controlling authority,or principles of political party called the federalist.
2.the purpose of the bill of right is to protect the basic right of US citizens,guaranteeing the freedom of speech,press,assembly and exercise of religion e.t.c
3. The founders were determined to bind down the administrators of the federal government with constitutional chains so that abuse of power in any of its branches would be prevented
Hey I just go dryc the morning and then you got done with your mom and then we get
Answer:
Migration is the movement of individual organisms into, or out of, a population. ... Immigration is the movement of individuals into a population from other areas. This increases the population size and growth rate. Emigration is the movement of individuals out of a population.
Explanation: