What are the driving forces behind plate tectonics?
a. heat and convection
b. heat and continental drift
c. continental drift and convection
d. temperature and continental drift?

Countries trade with each other because resources are not evenly distributed across the globe. true or false

Keegan is studying for a two-year associate of applied science degree. what will keegan achieve on successfully completing the degree?

Which two factors determine the density of seawater? a. salinity and temperature b. centrifugal force and temperature c. gravity from the sun and the moon d. temperature and gravity from the sun