The EROI (energy returned on investment) ratio is calculated as
a. Energy invested/Energy returned.
b. Energy invested × Energy returned.
c. Energy returned/Energy invested.
d. Energy returned × Energy invested.
Answer: C
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A) South Korea B) Taiwan C) North Korea D) Japan E) both North and South Korea
La Paz, Bolivia
Latitude:_______ Longitude:__________
Elevation:______m_______ft
Population:________
Avg. Annual Temperature (°C, °F):________
Annual Temp. Range (°C, °F):________
When an occluded front passes, the temperature drops dramatically
Indicate whether the statement is true or false
Groundwater is important in the preservation of ________ which develops when porous buried wood is either filled in or replaced by inorganic silica carried in by ground water.
A. petrified material B. preserved wood C. preserved material D. petrified wood