What does symons mean by a few lines

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?

What is one example of trench warfare ?

In what year did vladimir lenin and the bolsheviks seize power in russia? 1885 1900 1917 1961