Question

Identify the constituents of soil.
A)Gravel
B)Salt
C)Mineral
D)All of the above

Answer 1

Hint: Pedology, the scientific discipline covering all facets of soils, including their physical and chemical properties, the role played by organisms in the development of soils and in relation to soil characteristics, the definition and mapping of soil units and the origin and formation of soils. Pedology, however, comprises many sub disciplines, including soil chemistry, soil physics, and soil microbiology.

Complete answer:
Along with air and water, soil is a big part of the natural world and is crucial to the survival of life on the earth. Soil, the solid geology that makes up the Earth, is the result of the process of incremental dissolution of soil. The particles get smaller and smaller on the earth as rock is broken down by a number of mechanisms, such as weathering and erosion.

The soil is composed of four components as a whole: mineral material, organic material, air and water. Three primary mineral components are known to be soil;' sand',' silt' and 'clay'. The soil is given its 'mineral texture' by these pieces. Furthermore, when leaves and other plant matter fall to the earth and decompose, an 'organic' crust also forms. To classify soil by texture class, soil scientists (or pedologists) use a collection of sieve details to isolate the constituent sections.

Hence, the correct answer is option (D)

Note: While the pH of the soil usually varies from 1 to 14, the optimal range is between 5.5 and 7.5 for most agricultural crops. However, some crops have evolved beyond this optimal range to grow at soil pH values.