Soil separates are classifications of mineral particles based on size: sand (0.05–2 mm), silt (0.002–0.05 mm), and clay (<0.002 mm). These classifications help determine soil texture, which influences water retention, aeration, and nutrient availability.
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27 Mins English English100 Questions100 Marks120 Mins English English75 Questions300 Marks90 Mins English(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:
Arrange the minerals based on the descending order of weatherability:
[A] Biotite > Augite > Garnet > Quartz
[B] Zircon > Tourmaline > Olivine > Muscovite
[C] Albite > Ilmenite > Hornblende > Olivin
[D] Anorthite > Spuite > Zircon > Titanite
Choose the correct answer from the options given below:
The characteristics of the Plinthite horizon are:
[a] It is rich in humus
[b] It is rich in sesquioxide
[c] Presence of yellowish or greyish mottles
[d] Hardens reversibly due to repeated wetting and drying
Choose the correct answer from the options given below:
Given below are two statements, one is labeled as Assertion (A), and the other one is labeled as Reason (R).
Assertion (A): Humic acids are more resistant than fulvic acid.
Reason (R): Humic acids have low molecular weight and simple structure than fulvic acids.
In light of the above statements, choose the correct answer from the options given below.
Given below are two statements:
Statement (I): Alluvial soils are the largest group of soils in India.
Statement (II): Alluvial soils are rich in nitrogen but deficient in potassium.
In light of the above statements, choose the most appropriate answer from the options given below.
| List-I (Institutes) |
List-II (Headquarters) |
| [a] IISS |
(I) Hyderabad |
| [b] IIHR |
(II) Bangalore |
| [c] CRIDA |
(III) Jodhpur |
| [d] CAZRI |
(IV) Bhopal |
Match List-I with List-II
List-I (Physical parameter)
(A) Surface tension
(B) Viscosity
(C) Soil permeability
(D) Particle density
(E) Soil water potential
List-II (Unit)
(I) Kilogram per cubic meter
(II) Newton per meter
(III) Meter per hour
(IV) Pascal
(V) Pascal-second
Choose the correct answer from the options given below:
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