In the 1830s, with invention of cyrus mccormick’s reaper, one person could do the farm work previously done by five people.
what happens to many of the workers who were no longer needed on farms?
a. the became soldiers
b. they moved to europe
c. they took newly created factory jobs
d. they carried mail on the pony express

Why do governments supply public goods and services instead of selling them to those people who use them

What was the midwest states often called because they were located in the center of the nation

Which of the following methods could be considered a "best practice" in terms of informing respondents how their answers to an on-line survey about personal information will be protected? respondents are informed that investigators will try to keep their participation confidential; however, confidentiality cannot be assured.respondents are informed that a research assistant will transfer all the research data to a password-protected computer that is not connected to the internet, via a usb flashdrive. the computer is located in a research team member's office.the investigator uses the informed consent process to explain her institution's method for guaranteeing absolute confidentiality of research data.the investigator uses the informed consent process to explain how respondent data will be transmitted from the website to his encrypted database without ever recording respondents' ip addresses, but explains that on the internet confidentiality cannot be absolutely guaranteed.the investigator uses the informed consent process to explain how respondent data will be transmitted from the website to his encrypted database without ever recording respondents' ip addresses, but explains that on the internet confidentiality cannot be absolutely guaranteed