Most of Earth's seismic activity, volcanism, and mountain building occur along
A) convergent boundaries.
B) divergent boundaries.
C) plate boundaries.
D) transform fault boundaries.
Question 2
The theory of plate tectonics states that
A) the lithosphere is broken up into several plates that move about as a result of convective motion in the asthenosphere.
B) earthquakes and volcanic activity result from convection motion in the lithosphere.
C) buoyant lithospheric plates float on top of the rigid asthenosphere.
D) the plates move in conveyor-belt fashion as new crust is generated at the continental margins and destroyed at the mid-ocean ridges.
Earth Latitude Tilt
Continued harvest of (a) cod and (b) mountain sheep by humans has caused evolutionary changes in mat
The greenhouse effect: heat trapping by earth's atmosphere.
Piaget’s Three Mountain Task
Seismic Intensity Map, Loma Prieta 1989
Escape Speed from Earth