How is an ecological footprint determined?
a.
An ecological footprint is determined by measuring the average amount of land and water that a person in a region uses.
b.
An ecological footprint is determined by measuring carbon dioxide emissions for a given region.
c.
An ecological footprint is determined by measuring the rate of water use.
d.
An ecological footprint is determined by measuring the amount of waste generated in a given region.
Please select the best answer from the choices provided
A
B
C
D