Question

A. Arrange these layer s of soil in increasing order of their heaviness (when soil is added to water and stirred)-silt, sand, clay, humus, gravel

Answer 1

Answer:

gravel>silt>sand>clay>humus

Answer 2

When soil is added to water and stirred, the layers of soil on increasing order of their heaviness will be,

Humus < Clay < Silt < Sand < Gravel

• The humus is kept at first because in the process of soil formation or soil stirring the humus will be the very first thing, that is the dark, organic matter formed from animal decay.
• Clay is the next thing that is formed from the humus that the organic material which is formed that consists of fine particles.
• The products of weathering that are carried by air, river, or ice get deposited and helps in the formation of soil, they are known as the silt.
• Sand is formed from the silt and tends to be acidic.
• Gravel are small stones that get deposited on the top of the soil from various areas.