Quiz on Soil

What is Soil?

• The thin layer of grainy substance of the Earth is called Soil

• Soil is the vital thing that helps in growing all forms of life

• Soil is the substance that is regarded as potential.

• it is not regarded as a resource

What is Parent Rock

• It determines color, texture, Chemical properties etc

• It is the parent of the soil

• Parent rock refers to Humus

• It is the soil's middle part

Label the soil profile

• (a) is Parent Rock, (b) is Weathered rock material, (c) is Sub Soil with Sand, Silt and Clay (d) is Top soil with humus and vegetation

• (a) is Top soil with humus and vegetation, (b) is Sub Soil with Sand, Silt and Clay, (c) is Weathered rock material, (d) is Parent Rock

---------- and ---------- are the major threats to soil as a resource

How much time does it take to make just 1 inch of Topsoil?

• 1 day

• 12 years

• 500 years

• 2 seconds