Which continent had the greatest area covered by glaciers at the height of the Ice Age?

Which continent had the greatest area covered by glaciers at the height of the Ice Age?
 
  A) South America
  B) Asia
  C) North America
  D) Europe

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Q. 2 - What was the most recent episode of glaciation in North America?
 
  A) Nebraskan Episode
  B) Kansan Episode
  C) Illinois Episode Glaciation
  D) Wisconsin Episode Glaciation

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Q. 3 - What is a pluvial lake?
 
  A) A lake that forms on the margins of glaciers from glacial meltwater
  B) A lake that fills in an arid/semiarid region due to increased precipitation in a cooler, wetter climate
  C) A lake forming from a stagnant piece of melting glacial ice caught between two recessional moraines
  D) A subterranean lake forming in a sinkhole

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Q. 4 - How does isostatic rebound affect a glacial landscape after the glacier is removed?
 
  A) A depressed crust rises after glacial retreat.
  B) Advancing glaciers erode bedrock, which allows rock to spring up.
  C) Meltwater streams deposit sediment, severely depressing the landscape.
  D) Weight of water forces the crust downward.

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Q. 5 - Which glacial erosion feature is likely to contain a waterfall today?
 
  A) Tarn
  B) Hanging valley
  C) Esker
  D) Horn