How many different minerals deposits are found in Pakistan ?

Related Mcqs:

1. Which of the following are secondary minerals:

   A. Clay minerals
   B. Amorphous silicates
   C. Iron and aluminiumoxides
   D. All of the above

   Submitted by: Shafiq Rehman

2. Weathering process-physical, chemical, and biological _______________, the rocks and minerals into simpler products which either accumulate in place or are transported to other places where they become soil parent materials?

   A. Disintegrate
   B. Disentigrate
   C. Decompose
   D. Both a & c

   Submitted by: Shafiq Rehman

3. Soil-forming minerals occurring in rocks do not contain any water, they undergo ______________ when exposed to humid conditions & break down as in chemical weathering process:

   A. Carbonation
   B. Acidification
   C. Hydration
   D. Dissolution

   Submitted by: Shafiq Rehman

4. 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:

   A. 100 mm
   B. >70 mm
   C. <50 mm
   D. None of these

   Submitted by: Shafiq Rehman

5. 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

6. According to one estimate, wind and water erosion over ______ % of the Pakistan’s total area?

   A. 46%
   B. 36%
   C. 76%
   D. None of the above

   Submitted by: Shafiq Rehman

7. In Pakistan, Indus plains are formed from ___________ parent material which was transported by Indus river and its tributaries from Himalayas?

   A. Till
   B. Moraine
   C. Colluvial
   D. None of the above

   Submitted by: Shafiq Rehman

8. Peat soils are not present in Pakistan because these are formed in___________?

   A. Cool climate
   B. Acidic conditions
   C. both A & B
   D. None of the above

   Submitted by: Shafiq Rehman

9. 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

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

    A. 12.6 mha
    B. 5.7 mha
    C. 8.2 mha
    D. None of the above

    Submitted by: Shafiq Rehman