What will happen if humanity's ecological footprint continues to be greater than Earth's ecological capacity?

The periods and subdivisions of Earth history, arranged in proper order, are called the:

A) geologic timescale
B) calendar year
C) geologic flowchart
D) stratigraphic timeline

According to computer models,what could be the result of adding carbon dioxide to the atmosphere? 

A)  a reduction in the natural greenhouse effect 
B)  a rise in the sea level 
C)  an increase in food production 
D)  a stabilization of climate patterns

Once oil and gas are formed, they:

A) rise toward the surface
B) are lighter than water
C) flow most easily through permeable rocks, such as sandstone
D) can be prevented from reaching the surface if they are trapped by impermeable layers
E) all of these