looking for help on economics discussion post 2 paragraphs 8

The motivation for many people pursuing a college degree is to improve their human capital.

Describe how improving human capital increases wages. In your description, be sure to address the marginal product of labor.
Explain how rising wages could lead to a backward bending supply of the labor curve.
Discuss factors that could lead to an increase in the labor supply and the effect that shift would have on wages.