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

Related Mcqs:

How many different minerals deposits are found in Pakistan ?
A. 100
B. 60
C. 30
D. None of the above
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
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
Secondary air pollution is _____________________?
A. HNO3
B. CO3
C. CO2
D. All the above
Which one of the following is physical property of soil______________________?
A. Hydration
B. Oxidation
C. Reduction
D. None of the above
Which one of the following are macro nutrients__________________?
A. N,P,K
B. C,H,O
C. Ca,Mg,S
D. All the above
Which of the following crop takes N in ammonical form:
A. Wheat
B. Cotton
C. Rice
D. Mustard
Submitted by: Shafiq Rehman
Which of the following statement is wrong regarding, Soil ____________?
A. Regulates water supply & recycles waste materials
B. Medium for plant growth & Habitat for organisms
C. Engineering medium & modifies the atmosphere
D. Dirt which is threat to all living life & crop production
Submitted by: Shafiq Rehman
Following are types if erosion:
A. Rain splash & sheet erosion
B. Rill & Gully erosion
C. Normal (geological) erosion & Accelerated erosion
D. All of these
Submitted by: Shafiq Rehman
Which of the following nutrient play the most effective role in controlling rate of transpiration:
A. Potassium
B. Zinc
C. Phosphorus
D. Mg
Submitted by: Shafiq Rehman