Why did it take 4 years to ratify the articles of confederation?

The areas with the highest population density in europe are most likely to be

Whether or not a given study has the possibility of causing harm to participants:

2. explain the two different types of egyptian calendars. 3. what architectural advances did the ancient egyptians make? what impact do these advances have on our lives today? 4. what did egyptian art usually depict? how does this compare to forms of art that we see today? 5. what all was found in king tut’s tomb?