...surfaces such as concrete, asphalt, rooftops. and even packed soil, because it cannot soak in. As...

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Transcript of ...surfaces such as concrete, asphalt, rooftops. and even packed soil, because it cannot soak in. As...

Page 1: ...surfaces such as concrete, asphalt, rooftops. and even packed soil, because it cannot soak in. As runoff glides over these smooth hard surfaces, it encounters no resistance and
Page 2: ...surfaces such as concrete, asphalt, rooftops. and even packed soil, because it cannot soak in. As runoff glides over these smooth hard surfaces, it encounters no resistance and
Page 3: ...surfaces such as concrete, asphalt, rooftops. and even packed soil, because it cannot soak in. As runoff glides over these smooth hard surfaces, it encounters no resistance and
Page 4: ...surfaces such as concrete, asphalt, rooftops. and even packed soil, because it cannot soak in. As runoff glides over these smooth hard surfaces, it encounters no resistance and
Page 5: ...surfaces such as concrete, asphalt, rooftops. and even packed soil, because it cannot soak in. As runoff glides over these smooth hard surfaces, it encounters no resistance and
Page 6: ...surfaces such as concrete, asphalt, rooftops. and even packed soil, because it cannot soak in. As runoff glides over these smooth hard surfaces, it encounters no resistance and
Page 7: ...surfaces such as concrete, asphalt, rooftops. and even packed soil, because it cannot soak in. As runoff glides over these smooth hard surfaces, it encounters no resistance and
Page 8: ...surfaces such as concrete, asphalt, rooftops. and even packed soil, because it cannot soak in. As runoff glides over these smooth hard surfaces, it encounters no resistance and
Page 9: ...surfaces such as concrete, asphalt, rooftops. and even packed soil, because it cannot soak in. As runoff glides over these smooth hard surfaces, it encounters no resistance and
Page 10: ...surfaces such as concrete, asphalt, rooftops. and even packed soil, because it cannot soak in. As runoff glides over these smooth hard surfaces, it encounters no resistance and
Page 11: ...surfaces such as concrete, asphalt, rooftops. and even packed soil, because it cannot soak in. As runoff glides over these smooth hard surfaces, it encounters no resistance and
Page 12: ...surfaces such as concrete, asphalt, rooftops. and even packed soil, because it cannot soak in. As runoff glides over these smooth hard surfaces, it encounters no resistance and
Page 13: ...surfaces such as concrete, asphalt, rooftops. and even packed soil, because it cannot soak in. As runoff glides over these smooth hard surfaces, it encounters no resistance and
Page 14: ...surfaces such as concrete, asphalt, rooftops. and even packed soil, because it cannot soak in. As runoff glides over these smooth hard surfaces, it encounters no resistance and
Page 15: ...surfaces such as concrete, asphalt, rooftops. and even packed soil, because it cannot soak in. As runoff glides over these smooth hard surfaces, it encounters no resistance and
Page 16: ...surfaces such as concrete, asphalt, rooftops. and even packed soil, because it cannot soak in. As runoff glides over these smooth hard surfaces, it encounters no resistance and