Which of the following best describes surface water?

Surface water is defined as water that collects on the surface of the ground, including water from natural sources like lakes, rivers, and reservoirs. This type of water is readily accessible and plays a crucial role in various ecosystems, providing habitats for wildlife and serving as a resource for human activities such as agriculture, recreation, and drinking water supply.

The other options describe different forms of water but do not accurately fit the definition of surface water. For example, water from aquifers refers to groundwater, which is stored underground and is part of a different hydrological context. Similarly, water stored underground does not qualify as surface water since it is not above ground. Lastly, highly purified water refers to water that has undergone extensive treatment to remove contaminants, and while it can be sourced from surface water, it does not specifically define what surface water is. Therefore, the choice about water from lakes, rivers, or reservoirs precisely captures the essence of surface water.