10 POINTS AND BRAINLIEST! please help !! :) Part D

Think about the lesson and what you’ve learned about the Articles of Confederation. Review the lesson if necessary. Then answer the following questions.

Why did Americans feel that they needed a new constitution to govern the country? Do you think they were right? Why or why not?

According to the federal regulations, which of the following studies meets the definition of research with human subjects? a. a researcher uses the customs office’s passenger lists for ships bringing immigrants to the us between 1820-1845 to track the numbers of immigrants from certain ethnic groups.b. a researcher conducts a linguistic study of comments posted on a local public blog.c. a developmental psychologist videotapes interactions between groups of toddlers and their care givers to determine which intervention methods most effectively manage aggression.d. a researcher asks the director of a local free clinic about the number of patients in the last two years with newly diagnosed hiv/aids.

What greek scientist created a screw to move water for irrigation?

Which term is synonymous with natural rights according to enlightenment philosophers legal rights divine rights positive rights universal rights