Social philosophy applies moral principles to

The phrase that best fills the space provided by the question would be "the problems of the society." This specific branch of philosophy is given much importance because of the solutions it provides to the problems in the community. In addition to that, social philosophy also studies the idea revolving around the social behaviour.

1.world in spatial terms2.places and regions 3.human systems4.physical systems5.geography and it's uses6.environment and society

The will be a : great britain wanted french gold mines