A. Cheapest and slow process of rehabilitating depleted rangelands
B. Costly and fast process of rehabilitating depleted rangelands
C. Both (a) & (b)
D. None of these
Related Mcqs:
- Which area of Pakistan have a high potential for natural revegetation?
A. Potohar
B. Cholistan
C. River side
D. None of these - Natural revegetation can be achieved by:
A. Reducing stocking rates
B. Changing season of use, initiating special grazing systems
C. Proper distribution of livestock
D. Additional water development and protecting of the area from livestock grazing for longer periods
E. All of the above - In natural ecosystem, decomposers include:
A. Only bacteria and fungi
B. Only microscopic animals
C. The above two types of organisms plus macroscopic animals
D. Only the above two types of organisms - The transfer of energy from organism to organism is a natural community establishes:
A. Food chains
B. Biological control
C. Natural barriers
D. All the above - What is meant by the term natural regeneration?
A. If it is achieved naturally without involvement of man effort
B. If it is achieved by mechanically
C. Both (a) & (b)
D. None of these - The natural nitrogen cycle is greatly affected by the excessive use of:
A. Sulphate fertilizers
B. Insecticides
C. Phosphate fertilizers
D. Nitrate fertilizers - The major steps of natural pruning is:
A. Killing of the branches
B. Shedding of the dead branches
C. Occlusion or healing over of the branch stub
D. All of the above - The natural defects (in standing trees) are:
A. Knots
B. Reaction wood or abnormal wood
C. Brashness
D. Grains
E. All of the above - The modification of natural hazards such:
A. As rain, snow and climate is not practical
B. Control of man-made hazards such as roads, fences
C. Directed towards particular species
D. All of the above - Apart from natural timber, harvested from trees, many wood-based panel products are produced which includes:
A. Ploywood (including blackboard)
B. Particle board
C. Compressed fibreboard
D. Non-compressed fibreboard
E. All of the above
The correct answer to the question: "Natural revegetation is:" is "Cheapest and slow process of rehabilitating depleted rangelands ".
