What leader controlled the soviet union and was responsible for the great purge

For your research paper on the history of maui, you locate a source covering the overall history of the hawaiian islands. as you evaluate the source, however, you decide not to use it in your research because it never mentions maui. this significant omission of information falls under what criterion for evaluating resources?

One of the person important products for britain's manufacturers was

What is the impact of enlightenment ideals on the development of economic, political, and religious structures in the western world?