a.An intrinsic property that is determined by the amount of
mass per area of space or volume of the material​
b.it involves a change in the direction of waves as they pass from one medium to another.
c.speed of sound in dry air.
d.used by scientist to map the seafloor and to determine the depth of the ocean.
e.example of a reflected sound.
f. cause by vibrations
g.sound waves travels fastes.
paki sagutan naman po sa mga scientist jan​