Cation exchange capacity (CEC) is highest in Vermiculite, followed by Montmorillonite, Illite, and Kaolinite. Vermiculite has a high surface area and charge density. Montmorillonite also exhibits swelling properties and good CEC, while Kaolinite has very low CEC due to its 1:1 clay structure.
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(i) Very dark, cracking clay-dominated soils;
(ii) locally called regur, karail, and bhal;
(iii) high clay varying from 30–60%, base-rich;
(iv) occur in Maharashtra, Madhya Pradesh, Gujarat, Rajasthan, Chhattisgarh and some parts of Karnataka and T.N. __________- is called
[A] Black Soils
[B] Alluvial Soils
[C] Red Soils
[D] Laterite and Lateritic Soils
Choose the correct answer from the options given below:
The following is the list of pesticides:
[a] B.H.C.
[b] D.D.T.
[c] NaCN
[d] Heptachlor
[e] Carbendazim
Choose the correct answer from the options given below:
