LEED Green Associate Practice Test

The correct answer identifies an aquifer as a saturated rock formation that can transmit water. Aquifers play a crucial role in the hydrological cycle, acting as underground layers that store freshwater and allow it to flow through porous materials. They are vital sources of water for many communities, as they can provide a sustainable supply for drinking water, irrigation, and other uses. The ability of an aquifer to transmit water is determined by its permeability, which depends on the composition and structure of the rock material.

In contrast, the other options do not accurately define an aquifer. A container for collecting rainwater refers to a rainwater harvesting system, which is not related to the geological and hydrological functions of aquifers. A type of water filtration system implies an engineered solution for purifying water rather than a natural geological formation. Lastly, a natural habitat for aquatic plants pertains to ecosystems rather than the concept of an aquifer, which is specifically about water storage and transmission underground.