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Physical geography help pleaseQUESTION 1What part of Earth’s surface changed the most between glacial

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Question

Physical geography help pleaseQUESTION 1What part of Earth’s surface changed the most between glacial

periods and interglacial periods?

  1. Island Arcs
  2. The Amazon Basin
  3. Canada and Northern Europe
  4. South America and Australia

QUESTION 2

What are varves?

  1. Varves are annual layers deposited in lake basins, created by freezing over the lake in winter (creating very fine sediment) and thawing the lake in summer (creating deposits with larger sediment).
  2. Varves are annual layers of sediment laid down by stream floods dervied from glacial melting.
  3. Varves are tree rings that record temperature variability. They are laid down in locations where trees obtain as much moisture as they need. These trees grow in places like rainforests (both temperate and tropical). Because these trees get as much water as they need, the ring widths are impacted by temperature. These temperature-dependent tree rings are called varves.
  4. Varves are annual layers of sediment laid down by glaciers as they melt each summer.

QUESTION 3

What is eustatic sea level change and why has it occurred?

 
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