ch 9 (1)

of the OPEC nations , which country has the largest light oil reserves ?

• Kuwait

• Iraq

• Venezuela

• UAE

• Saudi Arabia

of the OPEC nations , which country has the largest light oil reserves ?

• Kuwait

• Iraq

• Venezuela

• UAE

• Saudi Arabia

which of the following are examples of commercial energy ?

• extracting oil ,mining coal , and gathering fuelwood

• using solar cooker, burning natural gas, and mining coal

• burning natural gas ,gathering fuelwood,and instilling a windmill

• extracting oil,mining coal , and burning natural gas

• installing a windmill,extracting oil , and mining coal

most commercial energy comes from?

• direct solar energy .

• indirect solar energy .

• extracting and burning fossil fuels .

• nuclear energy

• biomass

as oil resources are depleted the ratio ,or energy return on investment (EROI) , will

• increase

• decrease

• remain steady

• be greater than one

• become equal to one

A new energy resource has a net energy ratio of 0.2 . Energy evaluators are most likely to recommend

• using this energy resource immediately for transportation

• using this energy resource immediately for production of electricity.

• minimizing use of this resource until net energy ratios for other energy alternatives become lower

• rejecting its use now and in the immidiate future

• maximizing use of this resource until net energy ratios for other energy alternatives become higher

the non renewable energy resource with the slowest net energy yield is

• nuclear.

• oil.

• natural gas.

• biomass.

• coal

we know from the second law of thermodynamics that some of the high-quality energy in each step of processing is

• wasted and degraded to lower-quality energy .

• upgraded to higher -efficiency energy .

• maintained at the same level of quality

• destroyed completley

• coverted into renewable energy

what can allow energy source with a low net energy yield to compete in the marketplace with an energy source with higher net energy yield

• market price

• stimulus

• cap and trade program

• government subsidies

• rebates

what percent of the commercial energy consumed in the world comes from nonrenewable energy sources?

• 40%

• 51%

• 72%

• 92%

• 100%