| 43. | The process of soil development is called | |||||||
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| 44. | The phosphate are a group of minerals of one or more metallic elements chemically associated with the phosphate compound ____ | |||||||
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| 45. | The panama canal links | |||||||
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| 46. | The Rhine river of northern Europe empties into | |||||||
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| 47. | The place where material is excavated when the zone of maximum stream velocity approaches the stream’s bed is called | |||||||
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