The uppermost fertile layer of earth crest is called
The upper fertile layer of earth crest is called soil. Soil supports for growth of plant by providing water and minerals.
The water holding capacity is the highest in
The amount of water retained by soil per unit volume is called as water holding capacity. It is highest in the clayey soil.
In addition to the rock particles, the soil contains
In addition of the rock particles, the soil contains minerals, organic matter, air and water.
Which layer is formed of decayed organic matter?
The decayed organic matter in the soil form humus which is black in colour.
Soil erosion is a process of
The process of removal of top soil due to action of air, water etc. is called soil erosion.