ead this paragraph from a cause-and-effect essay.

Upwelling and El Niño

In normal years, the trade winds cause colder, nutrient-rich waters to rise to the ocean surface. This process is called “upwelling,” and it causes small fish called plankton to multiply.

Which rubric term or phrase would apply to the phrase “trade winds”?

cause

effect

elaboration of a cause or effect

transition between a cause and an effect