Chapter 15 Quiz

Question 1

Fracking

Answer 1

Digging into earth until shale is reached, broken up, and sand/chemicals are pumped into fractures to extract natural gas

Question 2

List the 3 fossil fuels

Answer 2

Coal, oil, natural gas

Question 3

Biomass/biofuel

Answer 3

recently living organisms used for bioenergy (ex: wood) Biofuels can include e85 from corn or biodiesel

Question 4

Geothermal

Answer 4

thermal energy inside earth’s crust, steam from it drives turbines

Question 5

Hydropower

Answer 5

from water

Question 6

Diff between net energy and EROI

Answer 6

Net energy is simply return -invested while EROI is a ratio (return/invest), higher ratio is higher return

Question 7

Peak oil

Answer 7

Demand for oil stays same while extraction decreases

Question 8

subsistence energy

Answer 8

energy sources gathered by individuals (wood, charcoal)

Question 9

cogeneration

Answer 9

Excess heat from generating electricity is captured and used to heat nearby workplaces