How do permeability and slope affect runoff?

 For one thing, with the increase in slope, the soil infiltration rate will decrease, which can increase the runoff amount [15–17]. For the other, the effective rainfall obtained by the soil bin will decrease as the slope increases.

Explanation:

Maintenance can be difficult, at best, and establishing plants, though very important for slope stability, often requires implementing costly and laborious solutions for erosion control. Every time it rains, the water that flows down a slope slowly removes soil and can cause gullies to form over time, removing valuable topsoil from the landscape.

i think its through the fallopian tube

sex cells are usually half's then they find another half and make a fertilize egg