What directly led to the population decrease in europe invasions famines floods a civil unrest

The chart shows four articles read by the students in a science class

Which of the following statements most accurately describes the requirement for the documentation of minors’ assent to participate in research? parents must approve written documentation.documentation is required unless waived by an irb.to protect minors documentation is always required.federal regulations do not require the documentation of minors’ assent.

Which of the following policies can the government use to encourage entrepreneurship?