A. Low temperature
B. High wind velocity
C. High light intensity
D. None of these
Related Mcqs:
- 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:
A. 140 m
B. 150 m
C. 160 m
D. 170 m - The ecosystem lying in the alpine zone between taiga and polar ice is called:
A. Savana
B. Autotrophic
C. Heterotrophic
D. Tundra - The areas laying above an altitude of about ______ and below zone of perpetual snow constitute alpine pastures:
A. 3000 m
B. 4000 m
C. 5000 m
D. 6000 m - A minima rotation worth the name is specified which corresponds to the age at which the trees reach the exploitable size which is usually 120 years, but is 150 years for the deodar, fir and kail in the moist zone of Kaghan 200 years for the ry zone of ______
A. Swat
B. Naran
C. Kaghan
D. None of these - Plants growing on burnt soil are called:
A. Heliophilous
B. Hydrophilous
C. Pyrophilous
D. Pyriform - Plants growing on sand and gravel are called:
A. Eremophytes
B. Oxylophytes
C. Psilophytes
D. Psammophytes - Plants growing in marsh are called:
A. Halophytes
B. Heliophytes
C. Halophytes
D. Sciophytes - Plants growing near sea shore will usually have xerophytic characters, like thick leaves, because:
A. There is plenty of water in the soil
B. There is too high a concentration of salts for the plants to absorb sufficient water from the soil
C. Light available to plant is not sufficient
D. The soil is muddy - Thick cuticles on leaves are typical of plants growing in:
A. Wet habitats
B. Warm habitats
C. Dry habitats
D. Cool habitats - The plants growing on saline soils are called:
A. Heliophytes
B. Xerophytes
C. Halophytes
D. Hydrophytes
The correct answer to the question: "Plants growing in alpine zone are dwarf due to:" is "High wind velocity".
