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

Who consider the various properties of soil in relation to plant production?

A. Pedologist
B. Soil chemist
C. Edaphologists
D. Agronomist

A and B horizon is called as_________?

A. Regolith
B. Solam
C. Inner core
D. None of the above

Which type of soil is found near the canal banks:

A. Acidic
B. Acidic & alkaline
C. Alkaline
D. Calcareous

The marble is a__________?

A. Dynamo metamorphic
B. Thermo metamorphic
C. Hydro metamorphic
D. Not sure

The largest soil order in Pakistan?

A. Aridisols
B. Entisols
C. Vertisols
D. Inceptisols

Accumulation of soluble salts in soil________?

A. Alkalization
B. Desalinization
C. Salinization
D. All off these

What is a soil horizon?

A. Soil texture
B. Soil structure
C. Layers of soil
D. All of these

Specific heat of organic matter is______?

A. 0.22
B. 0.33
C. 0.44
D. None of these

Element responsible pollen grain of plant__________?

A. N
B. P
C. K
D. B