You are presented with the quiz "What may cause chemicals to leach in soil?" 

But you don't know the answer, so you turn to your teacher to ask for hints. He says that "if soil is permeable then water easily flows through that soil" and "if a soil has high permeability, water flows through the soil more freely and may cause chemicals to leach". 

So, what's the best answer to the question?


 

 soil is permeable          