What do you mean? Be more specific!
My guess would be A, but I'm not 100% sure so you should probs check that.
Ocean currents generally flow clockwise in the Northern Hemisphere.
Answer:
The description corresponds to an observational study.
Explanation:
In Observational studies, researchers observe the effect of a risk factor without changing what is exposed to it or its conditions. On the other hand, in an experimental study, researchers can introduce a change and study the effects of it.
