Diseased trees (k) including those which are infected with parasites to such an extent that their growth is seriously affected or that they are a danger to their neighbours:

Related Mcqs:

1. Minamata diseased was caused due to water pollution by:

   A. Lead
   B. Cyanides
   C. Methyl isocyanate
   D. Mercury

2. Dominant tree: Including all trees which form the upper most leaf canopy and have their leading shoots free. These are usually sub-divided into:

   A. Predominant trees comprising all the largest trees which determine the general top level of the canopy
   B. Codominant trees which fall short of this, averaging about 5/6th of the height of predominant
   C. Trees with forked leader and similar defects
   D. All of the above

3. 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

4. ________ is merely a modification of the uniform system where large quantities of advance growth of various ages and size even up to trees of 40 cm diameter are retained as part of the future crop:

   A. Irregular Shelterwood system
   B. Coppice system
   C. Both (a) & (b)
   D. None of these

5. The growth of trees can be measured in the form of:

   A. Diameter
   B. Height
   C. Volume either of standing timber
   D. All of the above

6. The conifers rarely exceed 8 m. In height, the broadleaved trees reach about 9m. And the shrub growth about ______

   A. 1 to 3m
   B. 1 to 4m
   C. 1 to 5m
   D. 1 to 5m

7. Himalayan foothills and the Potwar region including ______ are covered with the scrub forests which have been reduced to scanty growth at most of the places:

   A. Salt Range
   B. Kala Chitta Range
   C. Both (a) & (b)
   D. None of these

8. Most outstanding danger at present for the survival of living beings on earth is:

   A. Radiation hazard
   B. Desertification
   C. Deforestation
   D. Gleization

9. Field capacity is the extent to which a soil can hold:

   A. Gravitational water
   B. Capillary water
   C. Hygroscopic water
   D. Capillary water plus hygroscopic water

10. The extent of darkness caused due to smoke can be determined by the help of:

    A. Smoke filters
    B. Ringelmann’s charts
    C. Horizontal microscopes
    D. All of these