1. Construction: Rocks are used extensively in construction for various purposes. They are crushed to create aggregates for concrete, asphalt, and roadbeds. Large rocks are used as building blocks, facing stones, and for landscaping.

2. Raw materials: Rocks are the source of many important minerals and metals used in manufacturing. For example, limestone is used to make cement, iron ore is used to produce steel, and granite is used to make countertops and other surfaces.