The natural defects (in standing trees) are:

Related Mcqs:

1. Collection from standing trees is:

   A. Seed should be collected only from healthy trees
   B. The person should climb the tree and shake branches or pick the needs himself.
   C. The falling seeds should be collected on a cloth sheet spread under the tree
   D. All of the above

2. Common combinations of the agroforestry system in Pakistan are: Trees species: Agricultural crops grown with trees:

   A. Poplars: wheat / maize / turmeric / sugarcane / vegetables / fodder
   B. Eucalypts: wheat/sunflower/tomatoes/potatoes/chilies
   C. Simal: maize/sunflower/vegetables/fodder
   D. Shisham: turmeric/wheat/maize/vegetables
   E. All of the above

3. 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

4. Form of forest produced by retaining certain trees of the old crop after regeneration is completed known as:

   A. High forest with standards
   B. Selection system
   C. Two-storied high forest
   D. None of these

5. Under which system mature trees are scattered over the whole area of the forest and felling should proceed annually over the whole area of the estate?

   A. Selection system
   B. Irregular Shelterwood system
   C. Uniform system
   D. None of these

6. The trees which produce root suckers are:

   A. Those which produce more and vigorous root suckers
   B. those which produce root suckers less in number
   C. Both (a) & (b)
   D. None of these

7. The number of trees required as a basis for a satisfactory table depends upon:

   A. The grouping adopted
   B. The precision required
   C. The deviations of individuals tree volumes from the means in each group
   D. All of the above

8. Trees and the farmlands is:

   A. All the forest influences and forest industry developments
   B. It is the ever-closer relationship between farming and forestry that is of over riding importance for the future
   C. Both (a) & (b)
   D. None of these

9. Importance of trees are:

   A. One of the most precious gifts of God to mankind
   B. When planted over large areas, they constitute a valuable resource
   C. A resource much superior to other bounties and blessing because not only it is renewable but also it is multipurpose one
   D. All of the above

10. Dead and Moribund trees (m) include:

    A. Bent over
    B. Badly leaning trees usually of the whip type
    C. Both (a) & (b)
    D. None of these