The uppermost fertile layer of earth crust is called
The uppermost fertile layer of the earth's crust is called soil. It supports plants which provide food for all the living things on this planet. Below the soil, there is hard rock.
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.
-------------- are soils in which more than half of the parent mineral matter is volcanic ash and appear very dark in colour.
Volcanic soils are soils in which more than half of the parent mineral matter is volcanic ash ans appear very dark in colour.
Breaking down of big pieces of rock into smaller pieces is called
The process of breaking down big pieces of rock into smaller pieces is called weathering.
Which soil is made from basaltic rock?
Type of soil depends upon the rock from which soil is formed. Basaltic rock forms the black soil.
Soil best suited for cultivation of wheat, rice and sugarcane is
The soil suited for cultivation of wheat, rice and sugarcane is called alluvial soil.
Red soil In which horizon of soil weathering is taking place?
The weathering of soil takes place in O-horizon of soil profile.