Where sand dunes normally occur?

Related Mcqs:

1. Longitudinal sand dunes move slowly at the rate of _____ per annum:

   A. 5 meters
   B. 10 meters
   C. 20 meters
   D. 30 meters

2. Sand dunes adversely affect:

   A. Communication system
   B. Human health
   C. Cultivation
   D. Animal health
   E. All of the above

3. With the construction of Thal irrigation canal, about _____ sand dunes have been converted into highly productive cultivated areas:

   A. 1 m ha
   B. 2 m ha
   C. 3 m ha
   D. 4 m ha

4. The plants present on the sand and gravel:

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

5. Plants growing on sand and gravel are called:

   A. Eremophytes
   B. Oxylophytes
   C. Psilophytes
   D. Psammophytes

6. Properties of ‘Sand Particles’ are:

   A. Composed of mineral quartz
   B. Larger is size
   C. Have large pores due to which they
   D. Do not retain water/nutrients
   E. All of the above

7. Deodar normally found in:

   A. Seashore of Karachi
   B. In the Hills of Punjab
   C. Plains of Punjab
   D. None of these

8. Measurement of age is normally determined by:

   A. From record
   B. From general appearance
   C. From branch whorls
   D. From annual rings
   E. All of the above

9. These are generally, but not always, developed above the birch zone and in patches, sometimes extensive, within it, probably conditioned by edaphic and biotic factors, in Kashmir, Gilgit, Chitral and Hazara. This type ascends normally to ______ or more above the sub-alpine forests and climate must be similar but more severe than in sub-alpine forests:

   A. 140 m
   B. 150 m
   C. 160 m
   D. 170 m

10. Temperature – with June the hottest month, summer (May to August) in plains is very hot and daily maximum temperature normally exceed 40

    A. Upper Punjab
    B. Upper Sind
    C. Upper KPK
    D. None of these