NPDES Level 1A Practice Test WITH QUESTIONS AND VERIFIED ANSWERS GRADED A+
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SECTION I: SOIL EROSION FUNDAMENTALS
Q1. A slope gradient of 25% (4:1) would indicate that in a horizontal length of
100 feet, the vertical rise would be ______ feet.
A) 2.5
B) 12.5
C) 25
D) 4
Correct Answe
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