How many parts of bark?

Related Mcqs:

1. Functions of bark are:

   A. As a protective material against extreme conditions of temperature
   B. If the temperature is very light or very cold whatever the case may be
   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. Prairies and steppes are parts of the natural regions called:

   A. Temperate grasslands
   B. Tropical grasslands
   C. Prairie grasslands
   D. Steppes grasslands

4. Sometimes sound and uninjured seeds may fail to germinate due to reduced activity of the seed or seed parts resulting in blockade of the growth. This may be due to:

   A. External effects of environment
   B. Internal conditions within the plant itself, i.e. Embryo dormancy or seed coat dormancy
   C. Both (a) & (b)
   D. None of these

5. Soil in the humid-subhumid parts is:

   A. In general
   B. Brown fertile light sandy
   C. Both (a) & (b)
   D. None of these

6. Whole of the country, outside the main Himalayan Range, receives a low variable rainfall from 50 mm in western parts of Boluchistan highlands to about 1500 mm in the _____

   A. Himalayan region
   B. Hindu Kush region
   C. Karakoram region
   D. None of these

7. 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

8. Reasons for fluting (buttressing) stem:

   A. Such irregularity may be the result of epicormic branches
   B. Also because of insect attack and genetical inheritance
   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