What is the primary focus of "green architecture"?

The primary focus of "green architecture" is sustainability and eco-friendly practices. This architectural approach emphasizes the design of buildings that are environmentally responsible and resource-efficient throughout their life cycle, from site selection and construction to operation and maintenance.

Green architecture involves using sustainable materials, optimizing energy and water efficiency, reducing waste, and minimizing the overall environmental impact of buildings. It often incorporates technologies like solar panels, green roofs, and energy-efficient HVAC systems, fostering a harmonious relationship between the built environment and nature.

In contrast, the other options highlight different aspects of architecture. Historical preservation techniques focus on the conservation of historic buildings, while luxury and opulence in design prioritize aesthetic appeal and extravagance. Urban modernization efforts may address infrastructure and urban planning but do not specifically center on environmental sustainability. Thus, the essence of green architecture is its commitment to creating spaces that are not only functional and beautiful but also contribute positively to both the environment and society.