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Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332

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BuyFindarrow_forward

Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332
Textbook Problem
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Permafrost underlies _______.

  1. a. arctic tundra
  2. b. alpine tundra
  3. c. boreal forest
  4. d. tallgrass prairie

Summary Introduction

Introduction: Permafrost is continually frozen soil or rock layer that remains at or below 0°C for two consecutive years. About one fourth of the Northern Hemisphere land is underlain by permafrost. It is found in high altitudes and high latitudes.

Explanation

Reason for correct answer:

Permafrost is found in the place having average annual temperature below -5°C. The arctic tundra has long cold winters and short cool summer. It forms between the polar icecap and the belts of boreal forests in the northern hemisphere. Therefore, permafrost lies beneath the arctic tundra.

Option b. is given as “arctic tundra”. Therefore, option a. is correct.

Reason for incorrect answer:

Option b. is given as “alpine tundra”. In alpine tundra, there is no permafrost...

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