A. 4.5 billion years
B. 4 billion years
C. 1 billion years
D. 6 billion years
Age of Earth is_____________________? Read More »
Agriculture Mcqs, Soil Science A. Wind
B. Fire
C. Water
D. Atmosphere
Problem of erosion in Thal and Cholistan is due to____________________? Read More »
Agriculture Mcqs, Soil Science A. 32
B. 15
C. 16
D. 3
Elements essentially required for growth of all plants species are___________________? Read More »
Agriculture Mcqs, Soil Science A. Pakistan
B. Canada
C. Alaska
D. Both b & c
Histols are found in______________________? Read More »
Agriculture Mcqs, Soil Science A. >4%
B. 5%
C. <20%
D. >10%
Mineral soil contain organic carbon___________________? Read More »
Agriculture Mcqs, Soil Science A. NH2CONH2
B. [CO(NH2)]
C. Both a & b
D. None of the above
The chemical formula of urea fertilizer is_______________________? Read More »
Agriculture Mcqs, Soil Science A. 39.0
B. 40.0
C. 41.0
D. 38.0
International atomic weight of potassium is_________________? Read More »
Agriculture Mcqs, Soil Science A. Ca(free cation
B. CaO
C. Ca
D. None of the above
The available form of calcium to plant is________________? Read More »
Agriculture Mcqs, Soil Science A. 56.58
B. 43.28
C. 50.58
D. 58.58
The molar mass of NaCl is_____________________? Read More »
Agriculture Mcqs, Soil Science A. NO3
B. NH4
C. Both a & b
D. None of the above
The available from of nitrogen for plant is________________? Read More »
Agriculture Mcqs, Soil Science