| 21. | Loess covers most of the hills and forms the parent material of a brown silt loam soil.
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| 22. | Obsidian is the rock formed as a result of quickly cooled lava, which is the parent material.
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| 23. | The exposure of parent material to favourable conditions produces mineral soils that are marginally suitable for plant growth.
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| 24. | The soils are of residual-colluvial parent material which are igneous rocks; grained diorite and shale.
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| 25. | They form in soil parent material that contains calcium carbonate or receive regular inputs of carbonates through dust.
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| 26. | These differences relate to climate, topography, and geological history leaving behind different sources of parent material.
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| 27. | What is the reason for this variation if parent material remains same, with no change in chemical properties?
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| 28. | The developmental sequence of Solonetzic soils is commonly from saline parent material to Solonetz, Solodized Solonetz and Solod.
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| 29. | Iron oxide can be present or absent, and the soil is generally derived from a sandy parent material.
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| 30. | When reordered to climate, relief, organisms, parent material, and time, they form the acronym CROPT.
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