Permanent change in soil is due to__________________?
Correct answer: D. Isomorphic substitution
- A. Ionic bonding
- B. pH change
- C. Covalent bonding
- D. Isomorphic substitution
Explanation
Isomorphic substitution replaces one ion in a clay mineral lattice with another of similar size, creating a permanent charge that does not depend on pH. This differs from pH-dependent charge caused by surface reactions.
Last updated
Practise Soil Science
377 free Soil Science MCQs from Agriculture, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Agriculture questions like this
Agriculture is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
Related questions
Art of making saline un-cultivable lands capable of re-cultivation is called.___________________?
Mercury does not wet the glass because of its property of ______________________?
Water available above the top of root zone of plants is about 15% of soil moisture contents, is mostly not available to plants celled_________________?
The property of soil which indicates the volume of water stored in the formation is called ___________________?
The property of saturated soil mass which transmits appreciable quantities . water is called___________________?