Question

The soil has particles of different sizes. Arrange the words given below in increasing order of their particle size. (Rock, Clay, Sand, Gravel, Silt)

Answer 1

Particle size of different types of soil:

1. The words arranged according to increasing order of their particle size would be: Clay < Silt < Sand < Gravel < Rock.
2. Soil is the naturally occurring organic material that is found on the earth’s surface.
3. It is primarily composed of nutrients, minerals, water, and other inorganic particles like metal ions, and some decaying residues of plants and animals.
4. Soil is formed by the rigorous degradation of huge rocks into finer particles like gravel and this process goes on to finally produce clay.
5. Some clay particles are so tiny that they cannot be seen under a standard microscope.
6. Silt particles range in size from 0.002 to 0.05 mm.
7. Sand has a thickness of 0.05 to 2.0 mm.
8. The terms gravel and stones both refer to particles larger than 2.0 mm.
9. The range of particle size of rock varies from 2 mm (a pebble) to more than 256 mm.