Which of the following locations is commonly used by ants to build their nests?

Ants typically build their nests in locations that provide shelter, moisture, and proximity to food sources. One of the most common environments for ant nesting is under rocks, as this location offers protection from the elements and helps maintain humidity, which is essential for the survival of the colony. The sheltered space under a rock also allows for the easy excavation of tunnels and chambers, making it ideal for establishing a nest.

The other options are less common for ant nests. While some ants may occasionally be found in attics, in appliances, or in indoor potted plants, these locations do not generally offer the same level of environmental stability and accessibility for food that ants seek in their nesting sites. Under rocks provides a more natural and conducive environment for the majority of ant species.