The document discusses key concepts in political science and the territory of the Philippines. It defines political science as the study of the state and its institutions. It outlines theories on the origins of states. It then discusses the key elements that comprise a state's territory, including land, waters, airspace, and seabed/subsoil. Specific to the Philippines, it notes that the national territory comprises its archipelago based on the archipelago doctrine, which recognizes the integration of islands and waters. It delineates the different domains that fall under Philippine territory and sovereignty.