10 Feb 2021 Welcome to your SOIL SCIENCE MOCK TEST Question 14. 'O' horizon is absent in..? Arable soil. Alluvial soil. Humus soil. Non of the above. Question 15. The diameter of fine sand particle is..? 0.002. 0.02 - 0.002. 0.02 - 0.2. Less than 0.002. Question 16. Recently formed soil order is..? Histosol. Entisol. Andosol. Non of the above. Question 04. The C : N ratio of FYM is..? 10:1. 90:10. 9:1. 100:1. Question 05. Which is considered as the best green manure crop..? Sun hemp. Lobia. BGA. All of the above. Question 06. Indian soils are deficient in..? Mn. P. N. Zn. Question 07. A soil has low status of N, when it is..? 150 kg/ha. 250 kg/ha. 350 kg/ha. 500 kg/ha. Question 08. Phosphorus is extracted by..? Olsen's method. Bray No. 1 method. Both a and b. Non of the above. Question 09. Leaching is used for the treatment of..? Alkali soil. Acidic soil. Saline soil. Saline alkali. Question 10..... is the process of mixing of soil? Perturbation. Pedolization. Podzolization. Non of the above. Time is Up! Time's up
