How many races does John Calhoun think there is

From 1990 to 2008, by what percent did the world’s most developed economies cut their greenhouse gas emissions?

How were the okanogan highlands formed? a. by subduction, which caused huge folds in earths surface b. as a result of retreating glaciers carving great valleys into the earth c. when molten rock from under the earth approached the surface d. when the collision of volcanic island chains and ocean rocks formed new earth

What is the meaning of the phrase “bear ’t”? what word is left out between the words but and few?