<h2>Ecological Footprint - Option C</h2>
An ecological footprint is determined by measuring the rate of water used. The Ecological Footprint is determined by following how much biologically prolific field it needs to consume a population's carbon dioxide radiations and to produce all the means it absorbs.
A country's consumption is measured by summing imports to and deducting exports from its nationwide generation.
the air's oxygen is partially replaced by carbon dioxide. This is because of the gas exchange that occurs so we can live.
The answer would be Four.