In the global water cycle, what does the ratio of total evaporation from oceans to precipitation over the oceans indicate?

Correct answer: Evaporation over oceans exceeds precipitation there

Correct answer: B. Over the oceans, evaporation is generally greater than precipitation when considered as the ocean-to-atmosphere part of the global water budget. Water changes into vapour at the ocean surface, and winds transport part of that vapour toward land. It later returns through precipitation, rivers, groundwater flow and other pathways. Therefore, the ocean surface can supply a net atmospheric moisture flux even though the complete global cycle conserves water. A is too strong and wrong: oceans do not lose water permanently, because water returns through the hydrological cycle. C is wrong because local or regional evaporation and precipitation do not have to be equal at every time and place. D is unrelated; the ratio does not describe destruction of groundwater. Memory cue: oceans are the major evaporating source, while land receives transported moisture.