Why do you think volcanoes form where they do?

According to the earth science reference tables, during which geologic time period were the continents of north america,south america, and africa closest together?

What are the answers for the following questions?

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