A. It is an important seral stage of tropical thorn forest type.
B. It forms a fairly complete canopy 12-15 m. High
C. Which Acacia arabica usually strongly predominates with varying amounts of Populus euphratica
D. All of the above
Related Mcqs:
- Tamarix-Poplar Forest is a dense thicket of Tamarix spp. With varying number of poplar trees are distributed on fresh silt alluvium of the riverain tract of the Indus between Muzaffargarh and Hyderabad with isolated occurrences as far north as _________
A. Peshawar
B. Mardan
C. Swat
D. Gilgit - 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 most striking difference between tropical rain forests and temperate forests is that:
A. The tropical rain forests have preponderance of angiosperms while the temperate ones have preponderance of gymnosperms
B. The trees of temperate forests are taller than these of tropical rain forests
C. Plants of temperate forests are comparatively more mesophytic
D. Tropical forests are comparatively homogenous - Tropical littoral and swamp forests is/are:
A. Tidal Swamp Forests
B. Littoral Grassland
C. Both (a) & (b)
D. None of these - Sub-alpine forests found in:
A. Kashmir
B. Dir
C. Swat
D. Chitral
E. All of the above - Depth of snowfall varies from ________ increasing with elevation in case of dry temperate forests:
A. 1.4 to 6.0 m
B. 1.5 to 7.0 m
C. 1.6 to 8.0 m
D. None of these - Himalayan moist temperate forests depict:
A. The chief character of this type is the extensive development of coniferous forests
B. They also extend into the dry temperature regions
C. To a small extent into the sub-alpine forests
D. All of the above - Annual temperature in case of Himalayan moist temperate forests: is _________
A. 12.2
B. 13.2
C. 14.2
D. 15.2 - Dry sub-tropical broad-leaved forests having:
A. Low forest of branchy trees forming a canopy
B. Varying in density from complete closure
C. Under the most favourable conditions to scattered single trees or groups on the driest sites
D. Typically field in with a shrub growth which similarly varies in density
E. All of the above - Tropical thorn forests are these:
A. Which thorny usually hard wooded species predominate, Acacia spp. Being particularly characteristic
B. The trees usually have short boles and low branching crowns which rarely meet except on exceptionally favourable spots
C. Both (a) & (b)
D. None of these
The correct answer to the question: "Riverain forests are:" is "All of the above".
