Many somalian refugees sought entrance to the united states in 2006 and 2007. describe factors that encoura somalians to leave their country in the 1990s and 2000s

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