Students can track individual polar bear movements online. Each bear's
position is signaled from a collar on its neck, via satellite. Which technology
is involved in the plotting of each bear's path?

Why is earth's outer core hotter than earth’s oceanic crust? earth’s oceanic crust is denser than earth’s outer core is. earth’s oceanic crust has lava flowing from the mantle. earth’s outer core has a composition of solid iron and nickel. earth’s outer core is deeper within earth than oceanic crust is.