Water that manages to infiltrate the land is lost to the cycle. is the process of land turning into desert as the quality of the soil declines over time. 1. Surface snow and ice are not part of this cycle. Exam 3 - Dynamic Earth - GEOLOGY Learn with flashcards, games, and more — for free. c) Causes water pollution when agro-chemicals and other chemicals are carried to rivers, lakes or oceans. Which of the following statements about the hydrologic cycle is true? Aridity-state of land being deficient of moisture leading to little or no vegetation. Causes of desertification. Headward erosion causes sheetwash. Desertification. Desertification-process in which desert like conditions slowly and steadily encroach on formerly productive agricultural land. Desertification can result from poorly managed human intervention in the savanna. d) Contributes to flooding by blocking river channels causing them to burst their banks during the rain season flooding the adjacent areas. There is an exchange of water among oceans, land, and atmosphere. Aridity and Desertification. b) Contributes to desertification when top soil is eroded leaving bare ground destroying vegetation. Causes of Aridity and Desertification. Areas of desert are created by the destruction of natural vegetation.

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