Final answer:
To find the difference in altitude between scuba divers and sharks, you subtract the shark's altitude from the diver's altitude, resulting in a difference of 43 meters.
Step-by-step explanation:
The difference in altitude between scuba divers at an altitude of 12 meters and sharks at an altitude of -31 meters can be found by calculating the absolute difference between the two altitudes. This is done by subtracting the shark's altitude from the diver's altitude:
Altitude of scuba diver - Altitude of shark = 12m - (-31m) = 12m + 31m = 43 meters.
The correct answer to the question is C) 43 meters.