Which bone in the le is non weight bearing?

After surgery of the hip, or of the bones of the leg, ankle, or foot, it is of the utmost importance for recovery to get the right amount of weight-bearing when moving around with crutches or frames

Humans can affect weathering and erosion in several ways.  humans cause  increases in acid rain and pollution, which increase the amount of  weathering  agents in the air and water, and then on land.for an easy answer: 1) acid rain2) pollution