What period of the mesozoic era did dinosaurs first appear?

Florida benefited greatly from roosevelt’s civilian conservation corps (ccc) in the 1930s. which of these was of least benefit to the state? a) workers planted millions of trees. b) workers received food and clothing. c) the government created state parks. d) new roads facilitated travel out west.

What was the main cause of the russian revolution? a. the protests against the war with poland b. the tremendous war losses of world war 1 c. the protests against the treaty of brest- litovsk d. the losses dictated by the treaty of versailles

Which economic sector employs the least number of people in mexico, barbados, and venezuela? a. agriculture b. services c. industry