An anatomical features, which exclusively develops to counter high velocity of wind:

Related Mcqs:

1. Every pesticide develops its own failure as its repeated use leads to:

   A. The development of resistant pest varieties
   B. Simplification of food web
   C. Reduction in population of useful birds
   D. Increase in weed population

2. The major types of wind erosion are:

   A. Siltation
   B. Soil creep
   C. Suspension
   D. All of the above

3. The factors to control of wind erosion are:

   A. The soil should be kept moist as far as possible especially in the season of windstorms. Moist soil is less vulnerable to wind erosion than dry soil
   B. Wind breaks by planting tree in rows or shelter belts of any means are effective in wind erosion
   C. Both (a) & (b)
   D. None of these

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

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

5. Which of the following plants are used as wind breaks?

   A. Zizpyhus and Calotropis
   B. Dalbergia and Delonix
   C. Delonix and Albizia
   D. Morinda and Anona

6. To prevent wind and water erosion, the crop is sometimes harvested in such a way that a basal stub of the plant is left behind. This phenomenon is called:

   A. Ley farming
   B. Mulching
   C. Basin listing
   D. Strip cropping

7. Realising the need for a better management policy for wildlife, a high powered Wildlife, a high powered Wildlife Enquiry Committee, constituted by the Government of Pakistan presented their (draft) report in 1970, following which all the provinces and administrative unit promulgated their own Wildlife Act within administrative units promulgated their own Wildlife Act within a span of two years _______

   A. 1974 and 1975
   B. 1975 and 1976
   C. 1976 and 1977
   D. None of these

8. The principal of positive economic features and the underlying hypotheses about agroforestry are:

   A. Maintains or increases site productivity through nutrient recycling and soil protection, at low capital and labour costs
   B. Increase the value of output on a given area of land through spatial or inter temporal intercropping of tree and other species
   C. Both (a) & (b)
   D. None of these

9. The major tool in the hands of the Forest Departments to protect forest areas is the Forest Act of 1927. Its salient features are:

   A. Government is the supreme owner of forestland
   B. Forests have been classed as reserved forests, protected forests, unclassed forests and community forests (Guzara forests), according to the need of protection
   C. Both (a) & (b)
   D. None of these

10. The salient features of the strategy 1992 relating to wildlife, referred to here as BIODIVERSITY, are:

    A. The strategy to improve the situation
    B. Action Plan
    C. Actions/Interventions
    D. All of the above