Question

which of these do humans use the most for their source of drinking water? surface water & ground water the atmosphere the oceans ice caps and glaciers

Explanation:

Oceans have salt - water which is not suitable for direct drinking. Atmosphere has very little water in the form of vapor and is not a major source. Ice caps and glaciers need to be melted and processed, and are not the most commonly used source. Surface water (rivers, lakes) and groundwater are the most accessible and widely used sources for drinking water after treatment.

Answer:

surface water & ground water