Which scientist first developed extensively the theory of continental drift? a. eduard seuss b. sir francis bacon c. antonio pellegrini d. alfred wegener

Will give brainliest asaapppppppppppp plz im in a major hurry to finish which of these pairs of objects exerts the greatest gravitational force on each other? object 1 and object 3 object 4 and object 3 object 1 and object 4 object 4 and object 2