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GS Geography Physical Geography of World
Q.

The distribution of characteristic vegetation of a region is determined mainly by:
Explanation:

ANS. (A) 
Soil, water and climate of a region are the three primary factors significantly influencing the vegetation of a region. Such factors as depth, texture, and humus content of the soil determine the type of vegetation that can be supported in a region. Again, any vegetation needs moisture to survive and this explains the range which varies from evergreen forests to shrubs. Temperature also plays crucial role in plant growth and development with extremes on either end affecting plant growth severely.

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