Question
Which one the following sets shows the correct soil
order in sequence of increasing age?Solution
Soil orders in sequence of increasing degree of development are Entisols, Inceptisols, Aridisols, Mollisols, Alfisols, Spodosols, Ultisols, and Oxisols. Â Histosols and Vertisols may appear in any of the above at any time during their development.
30Â Â Â Â Â Â 15Â Â Â Â Â Â Â 15Â Â Â Â Â Â Â 30 Â Â Â Â Â Â Â 120Â Â Â Â Â Â Â ?
...2Â Â Â Â Â Â Â Â Â Â Â Â Â Â 3.5Â Â Â Â Â Â Â Â Â Â 11.5Â Â Â Â Â Â Â Â 44Â Â Â Â Â Â Â Â Â Â Â 192.5Â Â Â Â Â 988
9Â Â Â Â Â Â Â Â Â a...
 47                         54          ?             74          87          ...
10 625 50 125 250 25 ?
...There are three series given below which are following with the same pattern.
Series I: 1, 12, 38, 193, 1355
Series II: 6, B, C, D, E
...Direction: Which of the following will replace ‘?’ in the given question?
2, ‘?’, 46, 136, 311, 605, 1086
5 14 56 220 1125 6786
...20 9 10 ? 29 71.5
...24 ? 14 16 39 88.5
...157, 159, 189, 319, ‘?’, 1 407 , 2749 Â