In Pakistan, approximately __________ mha of irrigated land is affected by salinization:

Related Mcqs:

1. Almost one third of the land area through out the world is affected by land degradation. Pakistan’s agriculture sector though facilitates employment to >65% but is facing challenges from:

   A. Erosion
   B. Salinity
   C. Waterlogging
   D. All of the above

   Submitted by: Shafiq-ur-Rehman

2. What is the total length of irrigated canals in Pakistan?

   A. 64000 km
   B. 62000 km
   C. 66000 km
   D. 58000 km

   Submitted by: Muhammad Ali

3. Total salt affected soils of Pakistan are____________________?

   A. 6.3 m ha
   B. 5.0 m ha
   C. 12.3 m ha
   D. 10.5 m ha

4. About 40% of the total area of Pakistan is affected by wind erosion. this includes:_________?

   A. Thal, Cholistan
   B. Parts of Mianwali and D.G
   C. Tharparkar & vast areas of Balochistan
   D. All of the above

   Submitted by: Shafiq Rehman

5. According to a latest research, Pakistan is predominantly a dryland country; 80% of its land area is arid and semi arid, 12% sub-humid and 8% under humid climate. Thus , soils of arid & semi-arid regions are vulnerable to a wide range of degradation process. As the case in arid and semi-arid climates elsewhere in south-central/southern Asia and Sub-Saharan Africa; _________________ are among the major causes of soil degradation and desertification?

   A. Drought stress
   B. Accelerated erosion & salinization
   C. Depletion of soil fertility and SOM
   D. All of the above

   Submitted by: Shafiq Rehman

6. Approximately quantity of milk required to prepare 1 kg of cheese is_____________________?

   A. 5 Kg
   B. 8 Kg
   C. 10 Kg
   D. 12 Kg

7. Approximately caloric value in Kcal/100 g ofwalnut is__________________?

   A. 500
   B. 600
   C. 650
   D. 700

8. Approximately caloric value in Kcal/100 g of whole milk is___________________?

   A. 50
   B. 60
   C. 69
   D. 75

9. Approximately caloric value in Kcal/100 g of almond is__________________?

   A. 400
   B. 500
   C. 600
   D. 640

10. Oxygen and Silicon together comprise approximately ______ %of the earth crust?

    A. 64 %
    B. 79 %
    C. 75 %
    D. 73 %

    Submitted by: Shafiq Rehman