Soil Science MCQ Question and Answer | Agriculture MCQ Question

Fanglomerates are poorly sorted, matrix-rich conglomerates that originated as debris flows on alluvial fans and likely contain the largest accumulations of gravel in the geologic record.
In simple words, we can say, Fanglomerate is cemented alluvial Fan. whereas an alluvial Fan is a triangle-shaped deposit of gravel, sand and even smaller pieces of sediment. Such as silt.

For most minerals, the strength of cation adsorption, or lyotropic series is
$${\bf{A}}{{\bf{l}}^{{\bf{3 + }}}}{\bf{ > C}}{{\bf{a}}^{{\bf{2 + }}}}{\bf{ > M}}{{\bf{g}}^{{\bf{2 + }}}}{\bf{ > }}{{\bf{K}}^{\bf{ + }}}{\bf{ = NH}}_{\bf{4}}^{\bf{ + }}{\bf{ > N}}{{\bf{a}}^{\bf{ + }}}$$
The arrangement of anions and cations according to their ability to modify the properties of other solutes such as proteins is termed as Lyotropic series however Lyotropy refers to concentration-dependent physical effects in solutions and often more specifically to ion-specific behaviour in aqueous solution.

Bushel is one of the standards of weight created by USDA for each grain so that grain could be weighed to determine the number of bushels rather than trying to make volume measurements.
And corn was assigned a bushel weight of 56 lb.

Effects of climate are nullified by parent materials in Entisol.
Entisols are the soil order having soil of recent origin. These are the soils that do not show any profile development other than an A horizon. It has no diagnostic horizons and most are unaltered from their parent material. It occupies about 16% of the global ice-free land area.

CaCO₃ (lime) is added to reclaim Acidic soil. it helps in balancing the pH level of acidic soil.
Liming is a desirable practice to overcome constraints of soil acidity for enhanced crop production. It involves the application of limestone, hydrated lime, chalk or other materials, which are rich in calcium and magnesium that can increase the soil pH through the improved base solution.

In remote sensing, vegetation gives maximum reflectance in NIR spectral band.
NIR is a near-infrared radiation band of spectrum, the NIR bands become weaker and weaker as the wavelength region goes down to a shorter wavelength region. While in remote sensing, vegetation cover gives maximum reflectance in the NIR band.
Remote sensing measures the wavelengths of light absorbed and reflected by the green plants, and the presence of pigments in leaves strongly absorbs wavelengths of visible Red light.

Continuous heavy rainfall leads to the formation of acid soil.
Heavy rainfall leads to numerous hazards for soil and plants like flooding, agricultural runoff, leaching and loss of crops and livestock.
Rainfall is naturally acidic, due to the formation of carbonic acid from carbon dioxide in the atmosphere, and this type of rainfall causes rapid acidification of soil.

Fluor apatite is a phosphate mineral with the chemical formula Ca₅(PO₄)₃F. It is a hard crystalline solid. It is an important source of both phosphoric and hydrofluoric acids. It occurs widely as an accessory mineral in igneous rocks and calcium-rich metamorphic rocks.

For manufacturing K₂O Biotite is used.
Biotite is a common group of phyllosilicate minerals within the mica group. Its chemical formula is K(Mg, Fe)₃AlSi₃O₁₀(F, OH)₂. It is regarded as a mineral species by the International Mineralogical Association until 1998.

Amongst oil cakes, the highest nitrogen content is in Groundnut cake and it about is about 7.3%. It has the highest nitrification rate also.
N content of castor cake is 4.3.
N content of the neem cake is 5.2.
N content of the Coconut cake is 3.0.