Typically, an abundant supply of groundwater may be yielded from which type of rocks?

Sedimentary rocks are particularly effective at yielding abundant supplies of groundwater due to their porous and permeable nature. These rocks are formed through the accumulation of sediments, which can include particles such as sand, silt, and clay. The spaces between these particles create pores that can store water, allowing groundwater to flow through them with relative ease.

In contrast, igneous and metamorphic rocks tend to be less effective in storing and transmitting groundwater. Igneous rocks, which are formed from cooled magma, are often very dense and lack the necessary porosity. Similarly, metamorphic rocks, which have been transformed under heat and pressure, also tend to be compact and impermeable, making them poor aquifers. Molten rocks, while not a standard geological classification in this context, typically refer to magma, which does not hold any groundwater at all as it is in a liquid state.

Understanding these properties is crucial for effective groundwater management and resource planning, as sedimentary rocks often serve as significant aquifers in many regions.