In which peak of immigration to the United States so we see people immigrating from Southern and Eastern Europe? Question 5 options: Colonial Peak 1st Peak 1840's - 1850's 2nd Peak 1870's - 1880's 3rd Peak 1890's - 1915

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