1. Integrative: Geography is an integrative discipline because it combines various aspects of both the natural and social sciences. It is concerned with understanding and explaining the interactions between the physical environment (such as landforms, climate, and ecosystems) and human activities (such as population, culture, and urban development). 

2. Empirical: Geography is empirical in that it relies on observation, data collection, and empirical research. Geographers gather and analyze data through various methods, including fieldwork, remote sensing, surveys, and geographic information systems (GIS). They use empirical evidence to draw conclusions and make informed decisions. 

3. Practical: Geography has practical applications in various fields. Geographical knowledge is used to address real-world challenges and make informed decisions. For instance, urban planners use geographic information to design efficient transportation systems and manage urban growth. Environmental scientists use geographical tools to monitor and conserve ecosystems. 

So, option 3 is correct.