A. Prismatic & Columnar
B. Spheroidal or Sphere-like
C. Angular blocky Sub-angular blocky
D. Platy & Luminar
Soil Science
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
Flow of nitrogen in soil due to:………?
A. Diffusion
B. Interception
C. Mass flow
D. None of the above
Availability of Phosphorus is maximum at:……….?
A. Neutral
B. Alkaline
C. Acidic
D. None of these
A & B horizon is called as:……..?
A. Regolith
B. Poly-pedon
C. Series
D. None of the above
Fossils are found in which type of rock:
A. Sedimentary rock
B. Metamorphic rock
C. Stratified rock
D. Both A & C