Important gum producing species are:

Related Mcqs:

1. Exotic species, which brought for plantation from some other country to our country or even from one ecosystem to other ecosystem are called, as exotic species like:

   A. Pinus nigra – Japan
   B. Euralyptus – Australia
   C. Polunia – China
   D. All of the above

2. The species characteristics are an expression of the genetic make up of an animal species influencing the extend and nature of ______.

   A. Home range, breeding season
   B. Longevity, territory and the niche
   C. Both (a) & (b)
   D. None of these

3. The most important species yielding these fruits are:

   A. Berberis lycium (Rasaunt)
   B. Cordia myxa (Lasura)
   C. Diospyros lotus (Amlok)
   D. Embtica officinalis (Amla)
   E. All of the above

4. Charcoal – the main species are:

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

5. Honey bees collect ectar and pollen from about 500 wild and cultivated plant species including:

   A. Trees shrubs, herbs, anhnuals
   B. And cultivated crops such as Acacias, Cassias, Eucalypts, Albizzias, Cherries, Dalbergia
   C. Both (a) & (b)
   D. None of these

6. For soil improvement and subsequent planting with species such as:

   A. Eucalyptus camaldulensis
   B. E. Microtheca
   C. Acacia nilotica
   D. Albizzias spp
   E. All of the above

7. During anaerobic digestion of organic waste, such as in producing biogas, which of the following is left undegraded?

   A. Lignin
   B. Lipids
   C. Cellulose
   D. Hemi-cellulose

8. The best seed moisture content is below 10% of the oven dry weight for the coniferous but it must be kept above _____ for most of the broad leaved species:

   A. 20%
   B. 25%
   C. 30%
   D. 35%

9. The chief coniferous species are:

   A. Pinus wallichiana
   B. Cedrus deodara
   C. Piecea smithiana
   D. Abies pindrow
   E. All of the above

10. The number of individuals of a species per sampling unit is called its:

    A. Biomass
    B. Abundance
    C. Density
    D. Frequency