Answer:
spin the brown ball on its axis while walking around the yellow ball in an oval path
Answer:
is this a riddle and if it is the answer is sandiwch
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.
<span>
</span><span>the time or date (twice each year)
</span><span>when day and night are of equal length</span>