why is it easier for water to flow through rock and sediment with larger pores than through rock and sediment with smaller pores

Because of its permeability.

Explanation:

It is on quizlet. I don't think it is right though, I am sorry.

Larger pores mean less friction between flowing water and the sides of the pores. Smaller pores mean more friction between flowing water and pore walls and more twists and turns for the water to navigate. A permeable material has a greater number of larger, well-connected pore spaces. An impermeable material has fewer, smaller pores that are poorly connected.