Use of specific words like Dialects
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.
Answer:
Geolgic time is measured by observing the changes in the fossils from oldest to youngest sedimentary rocks.
Explanation:
Answer:
Economic growth is driven oftentimes by consumer spending and business investment.
Tax cuts and rebates are used to return money to consumers and boost spending.
Deregulation relaxes the rules imposed on businesses and have been credited with creating growth but can lead to excessive risk-taking.
Infrastructure spending is designed to create construction jobs and increase productivity by enabling businesses to operate more efficiently.
