Why is external criticism so important when it comes to analyzing data?

What was one effect of the rise of factories during the industrial revolution

How does the architecture of the ruins at greek zimbabwe reflect the characteristics of african civilization

Why is illegal immigration a controversial issuea. people think that the current laws on immigration address the issue well.b. there are far fewer illegal immigrants each year than naturalized citizens.c. americans disagree on weather immigration law should change to address it.d. most naturalized citizens first entered the united states as illegal immigrants.