The two major anions in the octahedral and tetrahedral layers of silicate minera
ID: 698801 • Letter: T
Question
The two major anions in the octahedral and tetrahedral layers of silicate minerals are: A. Al and Si A bacteria B. fungi C. algae association is a good example of B. Al and Mg C. O and OH D. none of the above 5. Which one of the following soil microbes has the largest mass per'g surface soil? B. actinomycetes 7. In a given ecosystem, an organism A produces substance X that harms organism B, but benefits organism A B. commensalism C. amensalism D mutualism A. parasitism A. 6.5 A. mineralization B. ammonification C imobilization D. none of the above 8. The soil optimum pH for plant available P is: 9. The biological reduction of nitrate to nitrite then to gaseous nitrogen is called 0. When a plant residue that has a C:N ratio of 10: l is incorporated into soil, 1. Rain erosion involves 2. In general, soil anion exchange capacity will B. 4.0 C. 9.5 D. B and C expected to be dominant B. immobilization C. nitrification D none of the above A. mineralization A detachment B. transport A. increase A. 10 C. deposition d. all of the above. as pH increases B. decrease C.remain the same D. no relationship at all ital potassium (K)? D. 14 54. If you wanted to reduce the percentage sodium saturation from 30% to 5% in a sodic soil with a CEC of 20 cmoLkg. how many g of Caso4 2H 0 would need to react with 1 kg of this soil? A. 30.86 B. 20.19 C. 10.65 D. 4.3 amount of N you will need will be (hint an acre is 43560 f) A. 120 Ibs B. 60 lbs C. 12 lbs D. None of the above soil test recommendation for N was 120 Ibs per acre, and you have a yard that is only 121 ft by 360 ft, the amount of urea (46% N) you need will be: A: 120 Ibs B. 261 Ibs C. 383 Ibs D. 200 lbs 57. A new Hummer on average travels 12 miles per gallon and if a gallon of fuel produces 20 Ibs of CO, The amount of Co, emitted if you drive it for five years at 15,000 miles per year will be: A. 125,000 Ibs B. 200,000 lbs C. 180,000 bs D none of the above. organic matter and 96 of the organic matter is mineralized. Ifthe organic 58 If a hectare (2 million kg soil) contains 3% matter contains 596 N, the amount of N mineralize by this process will be: A. 6 kg B. 60 kg C. 600,000 kg D. 1200 kgExplanation / Answer
45.Answer is C.
46. Answer is B.
47. Answer is A.
48. Answer is A.
49. Answer is D.
50. Answer is A.
51. Answer is D.
52. Answer is B.
53. Answer is A.
54. Answer is D.
55. Answer is A.
56. Answer is B.
57. Answer is A.
58. Answer is B.
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