HELP NOW PLEASE what were the reasons for slavery and not for slavery in "The irrepressible conflict" by William Seward and John Calhouns speech for US senate

Which of the following statements proves that scientific knowledge changed due to the discovery of the fossil of a hadrosaur in north dakota? hadrosaurs were better runners than earlier thought. hadrosaurs had no pattern on their skin as expected. the length of the hadrosaur was shorter than previously thought. the muscular structure of hadrosaurs was less developed than expected.

Belshazzar was grandson and second-generation successor of according to jeremiah 27: 7.

When an amendment is ratified by three-fourths of congress or by three-fourths of state legislatures, it becomes part of the federal constitution, and all states—even those that did not ratify the amendment—must follow the laws in the new amendment. true or false