UPSC NDA I 2011 General Ability Paper

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Question : 94 of 150

Marks: +1, -0

No trees are found in Tundra biome near polar region of northern hemisphere. This is due to:

snowfall inhibits plant respiration.
frozen ice beneath the surface soil (permafrost) restricts roots growth.
less wind movement and inadequate sunlight.
low temperature which restricts development of reproductive organs.

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