Which of these countries was the first to achieve independence? Mexico
Brazil
Chile
Bolivia
Paraguay

Which statement explains what upwelling causes? a. upwelling causes tides to rise and fall. b. upwelling causes changes in the direction of currents. c. upwelling causes nutrients, minerals, and tiny organisms to rise. d. upwelling causes currents in the pacific ocean to change direction. i think the answer is c.

Less developed nations have low literacy rates. true or false

What is the name for the famous "ring" of volcanos? a. ring of flames b. ring of fire c. ring of lava d. ring of death