Humans have 5 stages ofor sleep, stages 1,2,3,4,5 . They don't really have specific names , but for example stages 1 and 2 are typically characterized as "light sleep" Stages 3 and 4 are "Middle sleep" and part of 4 and 5 are REM. Part two of your question is REM (Rapid Eye Movement) which occurs in stages 4-5.
I recently did a speech on this Topic! Let me know of you don't understand ! I hope this helps! :)
Answer: Vivian and Janet have encountered the need for explanation, a challenge to intercultural relationships.
Explanation:
Vivian, as an African American, has to explain how she became friends with Janet, an European American, because people assume that cultural differences between African Americans and European Americans are too big to be overcome.
The Federalists believed that American foreign policy should favor British interests, while Democratic Republicans wanted to strengthen ties with the French because they supported the French government that took over in 1789. Democratic Republicans wanted to protect the rights of the working class. Federalists saw industry and manufacturing as the best means of economic self sufficiency. During the War of 1812, the Federalists didn’t agree with the war because it would damage their trade with European countries. Most Americans saw the War of 1812 as a victory over Britain so by 1816 the Federalist party died out.
Biological warfare (mustard gas)