A Mesolithic site along the Danube River that appears to have been used for ritual purposes involving the construction of trapezoid-shaped structures is called .

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