Soil

Subsoil is made mostly of

• parent material

• humus

• clay and silt

• bedrock

Which horizon is made up of partially weathered rocks?

• Horizon A

• Horizon B

• Horizon C

• Horizon D or R (Bedrock Layer)

All soils begin with what process?

• Nutrients

• Subsoil

• Weathering

• Fertile

Soil Layers are called____

• MATERIALS

• ORGANIC

• HUMUS

• HORIZONS

Does the vertical cross-section of soil in the picture show a soil profile or a soil horizon?

• Soil Profile
• Soil Horizon

Water holding capacity is higher in which soil

• Silt

• Sand

• Clay

What is the major soil in the north Indian Plains

• Mountainous soil

• Black Soil

• Ree Soil

• Alluvial Soil

Which soil type is having highest phosphorus fixing capacity

• Alluvial soil

• Laterite soil

• Black soil

• Red Soil

A fertile soil is likely to have a PH value from which range to which ranges

• 4 to 5

• 8 to 9

• 6 to 7

• 3 to 4

The removal of Soil by the flow of water and wind is known as

• Elozation

• Erosion

• Deforestation

• None of these