Trenches were built during world war 1 for what reason

Which of the following areas borders the pacific ocean and has a mediterranean-style climate? a. british columbia b. northern oregon c. southern california d. southern washington

Which of the following events happen during president hardings term? a) the supreme court decided to break up large corporations. b) the supreme court strength and state laws protection labor union. c) the supreme court ruled in favor of extended regulations of child labor. d)the supreme court made it easier for large businesses to operate.

Why did the other allies like great britain and france not support wilsons 14 points?