Hello! Allow me to help!
Your question: How does the slope of land or direction of
plowing affect how water runs over the land?
My answer: Contour plowing was a method of plowing furrows that follow the curves of the land rather than straight up and down slopes. Furrows that run up and down a slope form a channel that can quickly carry away seeds and topsoil. Contour plowing forms ridges, slows the water flow and helps save precious topsoil.
Why is my answer correct? Allow me to explain: Contour plowing is the act of farming on a hill or a contoured area. The plow follows the contours of the land horizontally helping to reduce runoff of water. This practice helps to prevent soil erosion in hilly and contoured areas by capturing the water runoff using water breaks to keep water contained.
Hope this helps! UwU
-Maxwell