Mention 5 problems of science and technology

One way in which the european union encourages trade among countries is through the use of

The primary purpose of a certificate of confidentiality is to: allow law enforcement to investigate abuse cases.protect researchers from disclosing conflicts of interest.prevent subjects from knowing the purpose of a study.protect identifiable research information from compelled disclosure.

What happened in georgia as a result of the supreme court ruling in brown v. board of education?