Humus is present in:

Related Mcqs:

1. In which type of the forest, humus is formed by the dry and dead leaves:

   A. Coniferous forest
   B. Alpine
   C. Tundra forest
   D. Deciduous forest

2. By chemical composition the humus has maximum percentage of:

   A. Nitrogen
   B. Oxygen
   C. Carbon
   D. Hydrogen

3. Humus is:

   A. Fully decomposed organic matter only
   B. Party decomposed organic matter + CO2
   C. Minerals and fully decomposed organic matter
   D. Partly decomposed organic matter + mineral + water

4. The plants present on the sand and gravel:

   A. Lithophytes
   B. Oxalophytes
   C. Phancrophytes
   D. Psammophytes

5. In submerged hydrophytes, which of the following is present?

   A. Air spaces
   B. Cuticle
   C. Well developed sclerenchyma
   D. Well developed vascular tissues

6. The amount of living matter present in a component population of a particular trophic level is called:

   A. Standing crop
   B. Standing quality
   C. Both (a) & (b)
   D. Standing state

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

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

8. Most outstanding danger at present for the survival of living beings on earth is:

   A. Radiation hazard
   B. Desertification
   C. Deforestation
   D. Gleization

9. If water pollution continues at its present rate, it will eventually:

   A. Make oxygen molecules unavailable to aquatic life
   B. Make nitrates unavailable to aquatic life
   C. Prevent precipitation
   D. Stop the water cycle

10. Present status of research is:

    A. To providing a lead to the field foresters for the most efficient management of a limited forest resource
    B. And development of wild land resource for the production of goods and services
    C. Such as timber, fuelwood, water, wildlife, fodder, forage
    D. Minor forest produce for the people of Pakistan, research is several ancillary disciplines
    E. All of the above