Q1: Pick up the correct statement from the following :

ANS:D - All the above.

Answer is  "All the above."

1. To an agriculturist, soil is the substance existing on the earth's surface, which grows and develops plants. This definition emphasizes the role of soil in supporting plant growth.
2. To a geologist, soil is the material in a relatively thin surface zone within which roots occur, and the rest of the crust is termed as rock irrespective of hardness. This perspective focuses on the geological context and the distinction between soil and rock.
3. To an engineer, soil is the unaggregated and uncemented deposits of minerals and organic particles covering the earth's crust. This definition highlights the engineering perspective, which often deals with soil properties and behavior for construction and infrastructure projects.