These are generally, but not always, developed above the birch zone and in patches, sometimes extensive, within it, probably conditioned by edaphic and biotic factors, in Kashmir, Gilgit, Chitral and Hazara. This type ascends normally to ______ or more above the sub-alpine forests and climate must be similar but more severe than in sub-alpine forests:
Correct answer: B. 150 m
- A. 140 m
- B. 150 m
- C. 160 m
- D. 170 m
Explanation
Alpine scrub commonly occurs about 150 m or more above the sub-alpine forest zone, where climatic conditions become markedly more severe. Its occurrence is also influenced by local soil and biological factors.
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