What is the overall trend in global temperature since 1880

Wegeners theory of continental drift states that the continents have changed throughout history while the theory of plate tectonics

Uncle tom's cabin started out as a series of articles printed in the national era, a newspaper.

What must happen for new french words to be published in official dictionaries? a. they must be approved by the french academy b. they must be voted on by the people of france c. they must be used by famous french writers d. they must be used by philosophers a. they must be approved by the french academy