FORESTRY
SOIL SCIENCE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
Decayed organic material turns into dark colored material called ____
|
|
litter
|
|
|
clay
|
|
|
humus
|
|
|
soil
|
Explanation:
Detailed explanation-1: -The thick brown or black substance that remains after most of the organic litter has decomposed is called humus. Earthworms often help mix humus with minerals in the soil.
Detailed explanation-2: -The A horizon is the top layer of the mineral soil horizons, often referred to as ‘topsoil’. This layer contains dark decomposed organic matter, which is called “humus".
Detailed explanation-3: -Successive decomposition of dead material and modified organic matter results in the formation of a more complex organic matter called humus (Juma, 1998). This process is called humification.
There is 1 question to complete.