In Pakistan there is general deficiency of rainfall. It varies from 125 mm annually in upper Sindh to about 900 mm in the sub-mountainous of northern Pakistan. In Balochistan the mean annual rainfall is about 200 mm, diminishing to ________ mm in the desert of Kharan:

Related Mcqs:

1. Although some acid soils do exist in the northern mountainous regions of Pakistan (Mansehra, Sawat, Dir). Almost all cultivated soils of the country are ________________, with high base saturation and low organic matter content (generally less than 1%)?

   A. Alkaline
   B. Very much acidic
   C. Calcareous
   D. both A & C

   Submitted by: Shafiq Rehman

2. 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

3. calcium is immobile in plants. Therefore, under conditions of deficiency, young tissue is affected first. calcium deficiency symptoms are:

   A. Death of terminal buds; roots tips also affected
   B. Abnormal dark green appearance of foliage
   C. Premature shedding of  blossoms & buds & weakened stem
   D. All of the above

   Submitted by: Shafiq-ur-Rehman

4. Mean annual precipitation for tundra region is ____________________?

   A. 70-80 cm
   B. 150-70 cm
   C. 0-50 cm
   D. None of the above

5. In low-rainfall areas, huge shifting sand dunes are commonly found, particularly near human habitations. Techniques of afforesting the shifting dunes needed to be implemented. These techniques consist of___________?

   A. Treatment of shifting sand-dunes by fixing barriers in parallel stripes or in a chess-board design, using the local shrub material starting from the crest of the dunes to protect the seedlings from burial or exposure by the blowing of sand.
   B. Protection against biotic interference
   C. Both a & b
   D. None of these

   Submitted by: Shafiq Rehman

6. Examples of prismatic structures are found in the _______________ mapped in KPK and the northern part of Punjab.

   A. Peshawar series
   B. Gujranwala series
   C. wazirabad & pindorian series
   D. All of the above

   Submitted by: Shafiq Rehman

7. The practice of managing rows of closely planted woody plants with annual crops planted in alleys in between hedges is called as:________?

   A. Soil conservation hedges
   B. Woody Hedgerows
   C. Hedgerows intercropping
   D. All of these

   Submitted by: Shafiq Rehman

8. Phosphorus deficiency is widespread in most (_____%) 0f the soils of Pakistan.

   A. 54%
   B. 90%
   C. 68%
   D. 32%

   Submitted by: Shafiq Rehman

9. Accumulation of Al and Fe oxides and clays coming from the upper profile layers:

   A. Zone of eluviation
   B. Zone of Illuviation
   C. Zone of evaluation
   D. None of the above

   Submitted by: Shafiq Rehman

10. The tension of the water at the upper plastic limit is equivalent to pF value:

    A. 1
    B. 2
    C. 2.5 – 3.5
    D. 0.5

    Submitted by: Shafiq Rehman