Question

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

Explanation:

Oceans have salt - water not suitable for direct drinking. Atmosphere has very little water in usable form. Ice caps and glaciers need complex processes to be used as drinking water. Surface water (rivers, lakes) and ground water (wells) are most commonly used for drinking.

Answer:

A. surface water & ground water