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

Related Mcqs:

1. 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%

2. Tree marriages is a symbolic nuptial ceremony or union of a person with a tree and is widespread in _________.

   A. India
   B. China
   C. Malaysia
   D. Japan

3. The earliest species of tree still surviving is the Maidenhair tree (Ginkgo biloba) of Zhexiang, ______, which first appeared about 165,000,000 years ago, during the Jurassic era:

   A. Korea
   B. Japan
   C. China
   D. Malaysia

4. The types of tree height is:

   A. Total
   B. Bole
   C. Merchantable
   D. All of the above

5. Which ecological cycle is directly driven by sunlight?

   A. Hydrologic
   B. Phosphorus
   C. Nitrogen
   D. Sulphur

6. Ultraviolet rays of sunlight react and produce:

   A. CO
   B. SO2
   C. Ozone
   D. Flourides

7. General characteristics of crown are:

   A. In young age crowns are usually conical in shape but as the time passes the crown shape becomes rounded
   B. Drooping forms also occur in many species e.g. Polyalthia longifolia
   C. Both (a) & (b)
   D. None of these

8. Crown includes:

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

9. The stages in the development of a tree are:

   A. Seedling
   B. Sapling
   C. Pole
   D. Tree stages
   E. All of the above

10. Tree Morphology’ means:

    A. A branch of biology, which deals with external appearance or structure of plants
    B. Every tree has parts: Crown, stem, and roots
    C. Both (a) & (b)
    D. None of these