Energy

Question 1

best solutions to energy shortage

Answer 1

conservation, increase efficiency, explore alternative energy options

Question 2

surface mining

Answer 2

cheaper and can remove more minerals, less hazardous to workers

Question 3

sustainability

Answer 3

the ability to meet the current needs of humanity without compromising the ability of future generations to meet their needs

Question 4

electricity generation methods

Answer 4

using steam from water boiled by fossil fuels or nuclear reactions; falling water to turn a turbine to power a generator

Question 5

petroleum formation

Answer 5

microscopic aquatic organisms in sediments converted by heat and pressure into a mixture of hydrocarbons

Question 6

pros of petroleum

Answer 6

relatively cheap, easily transported, high-quality energy

Question 7

cons of petroleum

Answer 7

reserves will be depleted soon; pollution during drilling, transport and refining, burning makes CO2

Question 8

steps in coal formation

Answer 8

peat, lignite, bituminous, anthracite

Question 9

major parts of a nuclear reactor

Answer 9

core, control rods, steam generator, turbine, containment building

Question 10

two most serious nuclear accidents

Answer 10

chernobyl, ukraine (1986) and three mile island, PA (1979)

Question 11

alternate energy sources

Answer 11

wind, solar, waves, biomass, geothermal, fuel cells

Question 12

cogeneration

Answer 12

using waste heat to make electricity