Injuries by diseases is / are:

Related Mcqs:

1. Injuries by insects is / are:

   A. An essential part of the forest ecosystem
   B. Some are beneficial; quite a few are serious pests of trees and wood products
   C. Tonica inviferana, a semal shoot borer, Ascotis imparata,
   D. A bakain defoliator and Margaronia phloalis a defoliator of mulberry are serious pests of other tree species grown in forest plantations
   E. All of the above

2. The injuries are generally caused by:

   A. Unnecessary haste
   B. Use of improper tools
   C. Pruning during the growing season when the bark is loose
   D. All of the above

3. What are kinds of frost injuries?

   A. Frost rings: are dark brownish lines within the growth rings as a result of injury to the cambium due to the heavy frost
   B. Frost cracks: to the very much low temperature, the cracks appear at the basal portion of old trees
   C. Both (a) & (b)
   D. None of these

4. Frost injuries are:

   A. Heavy frost
   B. Heavy low temperature
   C. Both (a) & (b)
   D. None of these

5. A very harmful fibrous component causing pollution an inflicting diseases of lungs in human beings:

   A. Grease
   B. Asbestos
   C. Eichhornia roots
   D. ABS micelle

6. Diseases disrupt the normal physiological function of _________.

   A. An animal, sometime leading to their death
   B. Also having a potential of being transmitted to humans
   C. Livestock, between species, and vice versa
   D. All of the above

7. The subject of forest protection may be dealt with under the heads:

   A. Protection against man
   B. Protection against animals
   C. Protection against injurious plants
   D. Protection against injurious climatic factors
   E. All of the above

8. Damage caused by fire is / are:

   A. Injury to trees
   B. Injury to young growth and regeneration
   C. Injury to the soil
   D. Injury to wildlife
   E. All of the above

9. Protection against injurious climatic factors is / are:

   A. Temperature
   B. Frost damage
   C. Rain damage
   D. All of the above

10. Rain damage is / are:

    A. Both high and low precipitation in the form of rain is harmful for the forest crop
    B. A large chunk of forest area may be lost as a result of excessive rainfall
    C. Streams get flooded and wash away wooded land tree along the river banks are uprooted during floods
    D. All of the above