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Canada (161,454)
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GGR107H1 (52)
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Department
Geography
Course
GGR107H1
Professor
Charles Z Levkoe
Semester
Summer

Description
12-05-18 4:06 PM 4.2 Soil: the foundation for feeding a growing population Healthy soil is vital for agriculture Agriculture: practice of raising crops Cropland: land used to raise crops Rangeland: land used for grazing animals 4.2.1 As population and consumption increase, soils are being degraded We cannot extend the land to build more agricultural land Not all land is suitable for farming Soil degradation: damage or loss of soil 4.2.2 Agriculture began to appear around 10,000 years ago Artificial selection of fruits and selective breeding have reduced diversity Agriculture involves increasing productivity on land Requires a l
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