List of top Soil Science Questions

Certification is essential for authenticating organic products because:
(A) A third-party certification agency monitoring the organic production system
(B) Organic products are produced by following NPOP guidelines
(C) Organic farmers are dedicated in cultivation practices
(D) Potentiality of marketing of organic products are increasing

Arrange the following in increasing order of Water Use Efficiency:
(A) Drip Irrigation
(B) Pitcher pot Irrigation
(C) Surface Irrigation
(D) Sprinkler Irrigation

Assertion (A): The break of monsoon at critical stages for soil moisture stress leads to a reduction in yield.
Reason (R): Only when the break of monsoon exceeds 15 days duration or more.

Assertion (A): Darc's law is valid for a steady and stationary flow process in the soil.
Reason (R): In a steady flow condition, potential and gradient at every point in the flow path remain constant.

The height of the capillary rise of water in the soil is
(A) Inversely proportional to the radius of the tube
(B) Inversely proportional to the density of water
(C) Directly proportional to the radius of the tube
(D) Inversely proportional to the surface tension of water
Choose the correct answer from the options given below:

Statement (I): Hue is a measure of the chromatic composition of light.
Statement (II): The Munsell colour system is based on five principal hues.

Assertion (A): Cations adsorbed on soil colloids determine aggregate formation.
Reason (R): Cations form electropositive links between electronegative soil particles.