Question

Which of the three substances has the greatest permeability? a. Gravel b. Sand c. Silt d. All are equal.

Answer 1

B-sand, C-silt, A-gravel

Step-by-step explanation:

These all allow water or gasses to pass through them, so maybe just choose D because they all allow liquid or gasses to pass through them.

Answer 2

A. The answer would be gravel