Soil profile

Q. The top most layer of soil is called the _________.

1. Subsoil
2. Supersoil
3. Topsoil
4. Rock soil

Q. Discuss the factors affecting soil formation.

Q. consists of a mixture of sand, silt, and clay.

1. Subsoil
2. Rock material
3. Bedrock

Q. In , organic matter is used to cover the soil which helps in retaining soil moisture.

1. terrace farming
2. mulching
3. contour barriers
4. rock dams

Q. Contour lines are lines that join points at different elevations.

1. False
2. True

Q. What does soil consist of?

1. Minerals
2. Organic materials
3. Rock particles
4. All the above

Q. Name the term that can be given to the various layers in soil.

1. Soil mixture
2. Sub soil
3. Soil horizon
4. Top soil

Q. Plants obtain water and nutrients from soil.

1. True
2. False