Distillation and extraction products is / are:

Related Mcqs:

1. Extraction and cleaning is:

   A. Screening
   B. Fanning
   C. Floating
   D. All of the above

2. Seed collection, extraction and viability testing are:

   A. Floating
   B. Germination
   C. Tetrazonium chloride
   D. All of the above

3. Animal, mineral and miscellaneous products is / are:

   A. Lac
   B. Wax
   C. Silk and Cocoons
   D. All of the above

4. Apart from natural timber, harvested from trees, many wood-based panel products are produced which includes:

   A. Ploywood (including blackboard)
   B. Particle board
   C. Compressed fibreboard
   D. Non-compressed fibreboard
   E. All of the above

5. Charcoal – the main species are:

   A. Acacia nilotica
   B. Dalbergia sissoo
   C. Prosopis spp
   D. All of the above

6. Fodder from trees is:

   A. When grass is scarce, millions of hungry livestock has to fall back upon fodder trees
   B. While oaks, horse chestnut, birdcherry, poplars, robinia etc
   C. Both (a) & (b)
   D. None of these

7. A large variety of wild fruits and nuts is obtained from the:

   A. Coniferous forests
   B. Foot-hills
   C. Irrigated plantations
   D. Desert areas
   E. All of the above

8. Air pollution is caused by:

   A. The smoke, gases and fumes coming out of the factory chimneys
   B. The transport vehicles badly pollute the air
   C. Both (a) & (b)
   D. None of these

9. Environmental Amelioration is:

   A. Environmental stability
   B. Trees and the landscape
   C. Trees and man
   D. Control of air pollution
   E. All of the above

10. At present _____ of area in Pakistan is suffering from wind erosion:

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