Respuesta :
Answer: Clay tile
Explanation: Clay tile would be the least efficient because it has the lowest coefficient of absorption (3%). This means that percentage of the
energy in an incident wave that remains in a reflected wave is
equal to 97% and is very high. (Remember that this is equal to
100 minus the coefficient of absorption). Very little of the sound energy would be absorbed.
Answer:
clay tile
Explanation:
because its made of clay it can easily wash away