Sea levels dropped 300 feet.
A land bridge connected Siberia and Alaska
There were major asteroid impacts.
The rate of population increase stays constant.
Transform boundary
cleave
Nuclear.
Good News: A Fusion Reactor will be operational in 2016; on the other hand it will not be commercially available until 2045. {Song: "Take Care Brother, Beware!"}.
Pressure from sediment turned decaying plankton at the bottom of the ocean into natural gas.
they have a continental rise
Oceanic-continental convergent boundary, Oceanic-oceanic convergent boundary, and Continental-continental convergent boundary.
A convergent plate boundary is a location where two tectonic plates are moving toward each other, often causing one plate to slide below the others.