How does the slope of land or direction of
plowing affect how water runs over the land?

The slope of land affects how water runs over land due to how it cause the water to move faster. So the steeper or longer a slope of land is, the faster the water runs over it

To wear the full equipment.

Alright, i'm gonna try to explain this as good as possible. the law of conservation is like a collection overtime. it never changes though. no matter how you change the constituent parts.