Question

using the graph below, at what depth does the thermocline begin? (2 points)
5°c 10°c 15°c 20°c 25°c 30°c
50m
100m
150m
200m
250m
300m
350m
400m
450m
500m
public domain
○ 0 meters
○ 50 meters
○ 100 meters
○ 150 meters

Explanation:

A thermocline is a layer in a body of water where temperature changes rapidly with depth. Looking at the graph, we observe the temperature - depth relationship. At depths shallower than 100 meters, the temperature change with depth is relatively gradual. At 100 meters, the rate of temperature change (the slope of the graph) starts to increase significantly, indicating the beginning of the thermocline.

Answer:

C. 100 meters