Which theory suggested that the earth was once a signle supercontient that gradually that broke up into the contients that we know today

What is a reasonable action that provides safe water for communities?

What is a problem natives in both bolivia and peru face? a. extreme poverty c. discrimination b. limited access to resources d. all of the above

Which of the following best describes the circumstance under which countries block the importation of certain products into their country? a. importation blockade b. trade barrier c. trade inhibitor d. domestic protection act