A. To temperature
B. To conditions favourability
C. To destruction
D. To extreme conditions favourability
E. All of the above
Related Mcqs:
- Advantages of mixed stand are:
A. Utilization of site properly
B. Wind damages
C. Snow damages
D. Insect damages
E. All of the above - Advantages of pure forest are:
A. The forest easily be managed (rotation period is same soil felling can be carried out at the same time
B. In pure forest less skill of forester is required than in mixed forest
C. Both (a) & (b)
D. None of these - Thinning in mixed plantations are:
A. It is hardly impossible that mixed plant have same height
B. Ordinary thinning is not applied as it deprives of slow growing spp.
C. Both (a) & (b)
D. None of these - The major types of thinning in mixed plantation are:
A. Selection
B. Trees to be felled
C. Improvement felling
D. All of the above - 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 - Division of forest into stands on the basis of composition is / are:
A. Pure stand
B. Mixed stand
C. Both (a) & (b)
D. None of these - Division of forest into stands on the bias of age is:
A. Even aged stand
B. Un-even aged stand (selection forest)
C. Both (a) & (b)
D. None of these - Division of forest into stands on the basis of density is / are:
A. The relative closeness of trees is called density
B. To closeness of crowns boles and roots
C. Both (a) & (b)
D. None of these - The replacement of old forest stands by ______ is called regeneration.
A. New
B. Young
C. Both (a) & (b)
D. None of these - WCU stands for
A. Wild conservation unit
B. Wild conservation union
C. World communiction union
D. World conservation union
The correct answer to the question: "Difference between pure and mixed stands is / are:" is "All of the above".
