What were the characteristics of warfare during World War I? Check all that apply. Industrialization resulted in the creation of new weaponry.
Casualties were lower than in previous wars.
A stalemate prevented either side from making progress.
Nations agreed to abstain from the use of poison gas.
Germany used unrestricted submarine warfare to attack Allied ships.

Find and simplify an expression for the area of five rows of square with side lengths of x

Ahistorian is writing a book about british prime minister winston churchill. she claims that churchill was one of the earliest british leaders to realize that nazi germany was a serious threat to british security what is the best way to determine whether the historian's interpretation is valid? o a. review primary sources to see if churchill ever recorded his opinions of nazi germany. o b. find out whether the historian has written any other books about british leaders. c. analyze secondary sources summarizing the effects of nazi germany on great britain. o d. cite the historian's book in another study about important 20th- century world leaders.

How did the relationship impact the desire of christian nations in the iberian peninsula to spread christianity?