The diagram shows a research station with a helipad where helicopters can land. There is
also a thermometer to record temperatures.
What is the distance from the surface
of the water to the helipad?
?
meters
meters
30-
25 Helipad
20
15-
10-
5-
0
-5
-10-
-15-
-20
-25-
-30-Thermometer
-35-
-40-