Which of the following statements with reference to Humus is/are correct ? Select the answer using the code given below :
1 only
The first statement about humus being a dark colored amorphous substance is correct. Humus is indeed a dark, organic material found in soil, formed by the decomposition of plant and animal matter. The second statement, however, is incorrect in this context, as it suggests that humus itself serves as a nutrient reservoir in a colloidal form. While humus contributes to soil fertility, it does not specifically serve as a "colloidal" nutrient reservoir. Therefore, the correct answer is (a) 1 only.
Similar Questions
Which of the following statements with reference to saline soil in India is/are correct?
- 1. They are rich in nitrogen.
- 2. They occur in arid and semi-arid regions, and in waterlogged and swampy areas.
Select the answer using the code given below :
Important Questions from Soils
- Which soil is acidic in nature and found in high rainfall areas?
The soil that is present over the piedmont plains such as Chos and Duars is
Which of the following statements regarding Soil is/are FALSE?
1. Fertile soil supports plant growth by providing plants with nutrients, acting as a water holding body and serving as the substrate to which plants anchor their roots.
2. Vegetation, tree cover and forest prevents soil degradation and desertification by stabilizing the soil, maintaining water and nutrient cycling.
3. Grass found on pasture lands cannot protect the soil against soil erosion and also inhibits the soil biological activities.
Choose the correct answer from the options given below:With reference to the different types of soil found in India, identify the pairs which is/are wrongly matched.
1. Submontane soil - These are formed by the deposition of eroded material and are found in the Tarai region stretching from Jammu and Kashmir to Assam.
2. Karewa soil - These are the lacustrine deposits found in the Kashmir valleys and Bhadarwah Valley.
3. Peaty and Marshy soil - These are typical soils of the monsoon climate characterised by seasonal rainfall and is deficient in organic matter.
4. Laterite soil - These soils are rich in humus and organic matter.
Choose the correct answer from the options given below:Match List I with List II.
List – I (Pedogenic Process) List – II (Description) A. Podzolization I. It is associated with humid cold mid-latitude climates and coniferous vegetation B. Laterization II. It is associated with soils found in tropical and subtropical environments C. Calcification III. It is associated with warm, semi-arid environments, usually in grassland vegetation where evapotranspiration exceeds precipitation D. Gleization IV. It is associated with poorly drained and water logged areas of cold climates and peat is found in the upper portion of the soil
