Both methanol and ethanol release high levels of carbon dioxide when burned.

What would be unlikely to influence carrying capacity? 

A)  resources 
B)  a rain shower 
C)  disease 
D)  predation

Which ranking applies to illegal wildlife smuggling? 

A)  It is the world's second largest form of black-market commerce. 
B)  It is the world's third largest form of black-market commerce. 
C)  It is the world's fourth largest form of black-market commerce. 
D)  It is the world's fifth largest form of black-market commerce.

____________________ are used to prevent turtles from becoming caught by U.S.shrimp trawling boats.

What is the tectonic setting of the large 2011Tohuku earthquake in Japan?

A) slip along a transform fault that cuts through Japan
B) slip along a transform fault that is just offshore to the north
C) rifting in the Sea of Japan, west of the island
D) slip along a subduction zone megathrust)

A monoculture is a single crop that has replaced many interrelated plant and animal species.

From where are biomass fuels derived? 

A)  They are derived from sources of nitrogen. 
B)  They are derived from sources of phosphorous. 
C)  They are derived from sources of carbon. 
D)  They are derived from sources of oxygen.

The size of clasts that a stream can carry is primarily controlled by:

A) the water temperature
B) the dissolved and suspended load of a stream
C) how close the stream is to the ocean
D) the velocity and turbulence of the current
E) whether it is a permanent or ephemeral stream