After watching the video, answer the following questions (4 points each):
Describe the difference in appearance between the tilled and the untilled soils (0:17-0:32). What differences did you notice in root abundance, structure, and color?
Describe the results of the slake test. How did the tilled and untilled soils compare?
Describe the results of the infiltration test. How did the tilled and untilled soils compare? (Note, the two tests are related, because if aggregates falls apart easily when wet, then pore space collapses, and the soil won't drain well.)
Why does Ray say that we don't have a runoff problem, we have an infiltration problem? What does this mean?