A. Temperature
B. Frost damage
C. Rain damage
D. All of the above
A. Protection against man
B. Protection against animals
C. Protection against injurious plants
D. Protection against injurious climatic factors
A. Throughout their life
B. Seeds decay and seedlings are killed by damping-off
C. Generally serious in the coniferous nurseries
D. All of the above
A. As much a part of the forest as the trees themselves
B. The fact that the forest exists
C. Grows shows that the various components of the forest are in mutual equilibrium
D. All of the above
A. Stem borer of serious nature
B. It is found in KPK, Boluchistan and some parts of Punjab
C. The galleries run under the bark
D. All of the above
A. By freezing or chilling to death young weedy plants or young organs of plants
B. By splitting the stems of trees
C. By causing canker in stems of trees
D. By uprooting young plants
A. Injury to trees
B. Injury to young growth and regeneration
C. Injury to the soil
D. Injury to wildlife
A. This is flat headed stem borer
B. The grubs are white and not more than 2.3 cm in length
C. Both (a) & (b)
D. None of these
A. Domestic animals
B. Wild animals
C. Both (a) & (b)
D. None of these
A. Loss of valuable forested land, which is brought under a totally unproductive use
B. Loss of valuable timber
C. Accelerated erosion and other related features
D. All of the above