1161. Available water is held between?
A. Field capacity to super available water
B. Only field capacity
C. Field capacity to wilting point
D. All of the above

1162. The process by which nutrients chemicals or contaminants are dissolved and carried away by water, or are moved into a lower layer of soil:
A. Infiltration
B. Percolation
C. Leaching
D. Seeping

1163. Who consider the various properties of soil in relation to plant production?
A. Pedologist
B. Soil chemist
C. Edaphologists
D. agronomist

1164. A and B horizon is called as_________?
A. Regolith
B. Solam
C. Inner core
D. None of the above

1165. Which type of soil is found near the canal banks:
A. Acidic
B. Acidic & Alkaline
C. Alkaline
D. Calcareous

1166. _________is probably the most important growth limiting factor in acid soils especially those having pH below 5.0-5.5?
A. Nitrogen
B. Potassium
C. Aluminium
D. Calcium

1167. There are twelve soil orders found in the world of which six soil orders have been recognized at various locations are________?
A. Andisols, Gelisols, Histosols, Spodosols, Oxisols, Ultisols
B. Entisols, Inceptisols, Aridisols, Alfisols, Mollisols, Vertisols
C. Andisols, Aridisols, Histosols, Vertisols, Regosols, Libosols
D. The above statement is wrong

1168. swelling clay soils, develop cracks due to greater proportion of swelling type clays:
A. Alfisols
B. Ultisols
C. Vertisols
D. None of the above

1169. Systematic examination of soil in the field and laboratories, their description and grouping according to classification system:
A. Reconnaissance survey
B. Detailed soil survey
C. Soel survay
D. The answer of statement is not in options

1170. __________ particles range in diameter between 0.02 to 0.002 mm:
A. Sand
B. Silt
C. Clay
D. None of the above


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