Which type of landform develops at plate boundaries where one oceanic plate descends beneath another?
a. volcanic island arc
b. mountian ranges formed by a batholith
c. lava plateau
d. rift valley

Explain the cause for movement river valley civilization to early industrial centers

Which of the following is a way that advancements in technology improve humans' ability to measure air quality and protect human health?

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.