PLEASEPLEASEPLEASE HEL what information does a ship's sonar device use to determine the distance to the ocean?
a. the speed of sound in water and the time it takes for a signal to return
b. the temperature of the water and the temperature of the air above it
c. the composition of the ocean floor and the temperature of water near the ocean floor
d. the composition of the ocean floor and the temperature of water near the ocean floor
( i know there are two of the same answers but um that's how it was so)

this is an example of "committed" time.

committed time, as contracted time, takes need over essential and available time since it is seen as profitable work. it alludes to the time allotted to keep up a home and family. at the point when a man is commuting using committed time this individual may feel that the drive is an obligation to family, for example, strolling youngsters to class or driving a mate to work. contracted and committed time clients may feel that their commute could really compare to the commute of important or leisure time clients on the grounds that their commute is profitable work. in this manner, they might be more disposed to pick a mechanized method of movement.