Perforations, or tiny holes in metal, wood, and mineral ceiling ...

[theo]

Perforations, or tiny holes in metal, wood, and mineral ceiling tiles are designed to help absorb sound.
 
   True
   False
  Indicate whether the statement is true or false

Question 2

A smooth, dense wall of painted concrete:
 
   Reflects all the sound striking its surface
   Reflects only a small percentage of sound
  striking its surface
   Absorbs only a small percentage of sound striking
  its surface
   Absorbs all of the sound striking its surface

[fatboyy09]

Answer to Question 1

True

Answer to Question 2

Absorbs only a small percentage of sound
striking its surface

[theo]

Thanks for the timely response, appreciate it

[xiazhe]

Gracias!