Which of the following could be said about ecological footprints?
A. Exact ecological footprints are often difficult to calculate, but estimates can be useful in comparing populations.
B. Ecological footprints can’t be used to determine carrying capacity.
C. The average ecological footprints for various countries are nearly identical.
D. Ecological footprints don’t take into account resources needed to absorb and manage wastes.
Answer:
A. Exact ecological footprints are often difficult to calculate, but estimates can be useful in comparing populations.