A crane does 900 Joules of work in 40 seconds. What amount of power did it have?

Explain how plate tectonics have changed earth’s surface over time. include the role of plate tectonics in the creation of landforms.

Suppose while hauling rocks, you accidentally drop one. it breaks apart in flat, planar sections. what type of rock did you just drop? 20 points

Which best describes how fluids change as they travel through different portions of the convection currents? they change to solids at the outer portion of the convection currents. they change to solids at the inner portion of the convection currents. they become more dense at the outer portion of the convection currents. they become more dense at the inner portion of the convection currents