Question

the research station has an observation deck where scientists can observe the surroundings. there is also an underwater microphone to record sounds. what is the distance between the surface of the water and the observation deck? meters

Explanation:

Step1: Read the scale

The water - surface is at 0 on the scale and the observation deck is at 15.

Step2: Calculate the distance

The distance is the value at the observation deck since the water - surface is at 0. So the distance is 15 meters.

Answer:

15