Functions of bark are:

Related Mcqs:

1. How many parts of bark?

   A. Outer part – dead
   B. Inner part – living (Cortext)
   C. Both (a) & (b)
   D. None of these

2. It has been possible to raise the yield of resin from chir pine from the existing 1.5 kg per tree to 3.5 kg on the average per tree by using the American Bark Hack method in conjunction with ______ sulfuric acid:

   A. 30%
   B. 40%
   C. 50%
   D. 60%

3. The protective functions imply such important:

   A. Phypsiographic features of the country, conservation of soil and water, regulation of stream flow
   B. And prevention of such calamities as floods, land sides, siltation of dams and change in the course of rivers
   C. Both (a) & (b)
   D. None of these

4. Functions of organism matter are:

   A. Provide N.P.S.
   B. Increase water holding capacity of soil
   C. Reduce impact of falling rain drops
   D. Source of energy for micro-organisms
   E. All of the above

5. The functions of soil structure are:

   A. Key to fertility of soil
   B. Important factor in soil erosion
   C. Both (a) & (b)
   D. None of these

6. Effects/influences/functions of soil structure are:

   A. Water holding capacity
   B. Aeration
   C. Porosity
   D. Heat transfer
   E. All of the above

7. How windbreaks functions is:

   A. The air is baffled and mixed as it hits the wind breaks
   B. Causing a disruptive turbulence patterns which spoils the energy and velocity of the wind
   C. This mixing and churning continues as the pressure gradient is built by the windbreak and the air leaks through or rolls over the top of the screen
   D. All of the above

8. Thorniness means:

   A. It is generally characteristics of species, which are growing in a dry area
   B. Are longer when present in a young coppice or shoot
   C. Both (a) & (b)
   D. None of these

9. Crown includes:

   A. Palm trees
   B. Bamboo
   C. Conifers
   D. All of the above

10. Shapes of crown serve to expose the leaves to sunlight and air. The types of crowns of tree:

    A. Conical
    B. Umbrella
    C. Spherical
    D. Columnar
    E. All of the above