You have a container of soil with a particle size of 1.5 mm. You mix this soil into your garden which is mostly silt and clay. How will this affect the permeability of the newly combined soil? The new soil will increase the permeability of the garden. The new soil will have no effect on the permeability of the garden. The new soil has the same permeability as the garden. The new soil will decrease the permeability of the garden.