A. 23 %
B. 2.3 %
C. 17 %
D. 1.7 %
Submitted by: Shafiq Rehman
Related Mcqs:
- Fine-graned rocks formed on earth crust are called____________________?
A. Intensive igneous rock
B. Extrusive rock
C. Sedimentary rock
D. Plutonic - Most abundant mineral in the earth crust is______________________?
A. N-Feldspar
B. Feldspar
C. S-Feldspar
D. Amplubole - The most abundant metal in the earth’s crust and toxic to plants in low concentration is____________________?
A. Mo
B. Al
C. Fe
D. All the above - Oxygen and Silicon together comprise approximately ______ %of the earth crust?
A. 64 %
B. 79 %
C. 75 %
D. 73 %Submitted by: Shafiq Rehman
- The relative abundance of three types of rocks ( igneous-metamorphic- sedimentary) in the earth’s crust is_________?
A. 12.5 % -12.5 % – 75%
B. 64.7 % – 27.4 % – 7.9 %
C. none of A & B
D. 7.9% – 27.7 % – 64.4Submitted by: Shafiq Rehman
- Which element is found highest in earth crust?
A. Aluminum
B. Silicon
C. Sodium
D. None of the aboveSubmitted by: Shafiq Rehman
- International atomic weight of potassium is_________________?
A. 39.0
B. 40.0
C. 41.0
D. 38.0 - Potassium (K) fixation capacity is maximum in:____________?
A. Vermiculite
B. Illite
C. Montmorillonitic
D. Amorphous claySubmitted by: Shafiq Rehman
- Phosphorus (P) is the second major nutrient essential for plant growth. With the exception of Nitrogen (N) and Potassium (K), Phosphorus is required by plants in_________?
A. Lesser quantities
B. Greater quantities
C. Not required
D. The above statement is wrongSubmitted by: Shafiq Rehman
- Potassium plays a significant role in the transport of water & nutrients through the plant in the xylem. When the supply of K is reduced, the transportation of ___________________ is depressed:
A. Nitrates, Phosphates
B. Calcium, magnesium
C. Amino acids
D. All of the aboveSubmitted by: Shafiq-ur-Rehman
