A. 1
B. 2
C. 2.5 – 3.5
D. 0.5
Submitted by: Shafiq Rehman
Related Mcqs:
- The lower limit of available water is called ____________________?
A. Field capacity
B. Wilting point
C. Available water
D. Hygroscopic water - The safe limit of No2 in drinking water is_____________________?
A. 10 mg L-1
B. 15 mg L-1
C. 20 mg L-1
D. None of the above - Any material such as straw, sawdust, leaves, plastic films, & loose soil that is spread upon the surface of the soil to protect the soil & plant roots from the effects of raindrops, soil crusting, freezing or evaporation:
A. Mull
B. Mulch
C. Mycorrhizae
D. MuckSubmitted by: Shafiq Rehman
- 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 aboveSubmitted by: Shafiq Rehman
- 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 theseSubmitted by: Shafiq Rehman
- Sewage water consists of water and solids in the following percentage___________________?
A. 99 & 1
B. 90 & 10
C. 80 & 20
D. None of the above - Water occupied the larger soil pores and moves down readily under the force of gravity. Water in excess of the field capacity is termed:
A. Capillary water
B. Hygroscopic water
C. Gravitational water
D. None of the aboveSubmitted by: Shafiq Rehman
- Which chemical used to prevent evaporation from surface of water in water bodies?
A. Cetyle alcohol
B. Methyle alcohol
C. both A and B
D. None of theseSubmitted by: Shafiq Rehman
- Which chemical used to prevent evaporation from surface of water in water bodies?
A. Cetyle alcohol
B. Methyle alcohol
C. both A and B
D. None of theseSubmitted by: Shafiq Rehman
- Nitrogen & sulphur dioxide liberate from motor vehicles & industries. Nitrogen & Sulphur gases dissolve in the water vapour of atmosphere & form nitric & sulphuric acid. This rain water falls on soil as__________ & contaminates soil also:
A. Acid rain
B. Neutral rain
C. Both A & B
D. None of the aboveSubmitted by: Shafiq Rehman