“Wash-in” takes place in which horizon?

A. E
B. O
C. B
D. A

One of the following is not a form of water erosion:

A. Saltation
B. Rainsplash erosion
C. Sheet erosion
D. Rill erosion

Soil conservation is performed by:_________?

A. Cutting trees
B. Excessive grazing
C. By plantation
D. By heavy irrigation

The study of relationship between soil properties & plant production is known as:_________?

A. Pedology
B.  soil science
C. Agronomy
D. None of these

Which type of structure is dominant in grasslands:

A. Prismatic & columnar
B. Spheroidal or sphere-like
C. Angular blocky sub-angular blocky
D. Platy & luminar

Soil order Vertisol is related to:_________?

A. Black soils
B. River soils
C. Marine deposits
D. Both b & c

The clay fraction of the soil contains particles less than 0.002 mm. Particles <0.001 mm size:

A. Soil silt
B. Soil colloids
C. Soil loam
D. Soil sand

Which is the correct sequence of soil erosion by water:

A. Rill-sheet-gully
B. Gully-sheet-rill
C. Sheet-rill-gully
D. None of these

Which of the following nutrient play the most effective role in controlling rate of transpiration:

A. Potassium
B. Zinc
C. Phosphorus
D. Mg

Field Capacity is a point at which?

A. All the macro & micropores in the soil are filled with water
B. All the macropores filled with water & the micropores filled with air
C. All the macropores filled with air & the micropores filled with water
D. All of the above wrong