Question:
Which one of the following is not a characteristic feature of “humus” that is formed during decomposition of detritus?
Which one of the following is not a characteristic feature of “humus” that is formed during decomposition of detritus?
Show Hint
Humus is vital for maintaining soil structure and nutrient cycling.
Updated On: Jan 13, 2026
- Amorphous, colloidal, dark-coloured substance
- Amorphous, colloidal, light-coloured substance
- High resistance to microbial action
- Colloidal substance
Show Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Humus is an amorphous, colloidal, dark-coloured substance.
It is resistant to microbial action and contributes to soil fertility.
Light-coloured humus is not a characteristic feature.
Was this answer helpful?
0
0
Top CBSE CLASS XII Biology Questions
- All algae have
- With a neat, labelled diagram, describe the parts of a typical angiosperm ovule.
- With a neat diagram explain the 7-celled, 8-nucleate nature of the female gametophyte
- Draw a labeled diagram of male reproductive system.
- Draw a labeled diagram of female reproductive system.
View More Questions
Top CBSE CLASS XII Structure and Development of Seed and Fruit Questions
- Anthropogenic action can enhance the rate of evolution. Explain with the help of an example.
- Why did Hershey and Chase use \(^{35}\text{S}\) and \(^{32}\text{P}\) in their experiment? Explain.
- A DNA fragment has 3000 nucleotides, out of which 160 are Guanine. How many bases having double hydrogen bonds between them does this DNA fragment possess?
- Identify the category of genetic disorder depicted in the pedigree chart given below:
Identify the correct labellings in the figure of a fertilised embryo sac of an angiosperm given below:
View More Questions
Top CBSE CLASS XII Questions
- 2, b, c are in A.P. and the range of determinant $\begin{vmatrix}1&1&1\\ 2&b&c\\ 4&b^{2}&c^{2}\end{vmatrix}$ is [2, 16]. Then find range of c is
- A boy of mass 50 kg is standing at one end of a, boat of length 9 m and mass 400 kg. He runs to the other, end. The distance through which the centre of mass of the boat boy system moves is
- A capillary tube of radius r is dipped inside a large vessel of water. The mass of water raised above water level is M. If the radius of capillary is doubled, the mass of water inside capillary will be
- A circular disc is rotating about its own axis. An external opposing torque 0.02 Nm is applied on the disc by which it comes rest in 5 seconds. The initial angular momentum of disc is
- A circular disc is rotating about its own axis at uniform angular velocity \(\omega.\) The disc is subjected to uniform angular retardation by which its angular velocity is decreased to \(\frac {\omega}{2}\) during 120 rotations. The number of rotations further made by it before coming to rest is
View More Questions