Glacial and Interglacial Periods

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Questions and Answers

When did the most recent major ice age occur?

  • Around 2.5 million years ago (correct)
  • Around 11,700 years ago
  • Around 300 million years ago
  • Around 21,000 years ago

What characterized the glacial period during the ice age?

  • Warmer temperatures and glacial retreats
  • Rising sea levels and warmer temperatures
  • Falling sea levels and colder temperatures
  • Colder temperatures and glacial advances (correct)

When was the Last Glacial Maximum?

  • Around 11,700 years ago
  • Around 21,000 years ago (correct)
  • Around 300 million years ago
  • Around 2.5 million years ago

What allows adapted animals to move to higher altitudes in alpine environments?

<p>Milder temperatures in the summer (A)</p> Signup and view all the answers

Why does alpine vegetation usually die back in winter?

<p>Freezing of soils (B)</p> Signup and view all the answers

What stimulates plant growth, thawing, and decomposition in alpine environments?

<p>Milder temperatures in the summer (A)</p> Signup and view all the answers

Why does the nutrient rich vegetation allow a more fertile soil to develop in alpine environments?

<p>Meltwater from the melting of snow and ice (B)</p> Signup and view all the answers

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