OBJECTIVE FORESTRY

FORESTRY

SOIL SCIENCE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which is NOT a layer of soil?
A
bedrock
B
topsoil
C
undersoil
D
subsoil
Explanation: 

Detailed explanation-1: -The O horizon is not really a layer of soil. It consists of loose and partly decayed organic material (leaves, living or once living insects, etc.).

Detailed explanation-2: -The three major components of subsoil are sand, silt and clay. “The subsoil is indirectly influenced by the activities that occur at or near the soil surface, ‘’ says Dr.

Detailed explanation-3: -Soils are named and classified based on their horizons. The soil profile has four distinct layers: 1) O horizon; 2) A horizon; 3) B horizon, or subsoil; and 4) C horizon, or soil base ([link]).

Detailed explanation-4: -The layer of soil just below the subsoil is called Sub-stratum. Sub-stratum is also called C-horizon.

There is 1 question to complete.