Analyzing ecological footprints reveals that
a. Earth’s carrying ...

Question

Analyzing ecological footprints reveals that
a. Earth’s carrying capacity would increase if per capita meat consumption increased.
b. current demand by industrialized countries for resources is much smaller than the ecological footprint of those countries.
c. it is not possible for technological improvements to increase Earth’s carrying capacity for humans.
d. the ecological footprint of the United States is large because per capita resource use is high.

Accepted Answer

Welcome back. Let's look at our next problem. It says ecological footprint is defined as and when we look over our answer choices, let's keep in mind. Choice D. Is all of the above. So we might have all of the three choices above. Be correct. So with that in mind let's evaluate these to see which is the correct definition of ecological footprint. Choice A says the amount of land needed to sustain a population's use of resource. Well this is the definition of ecological footprint. The amount of land think of the footprint of a building, the amount of the area of land that the building takes up space on the land. So ecological footprint is a concept in which the we express in an amount of land, what is needed to sustain a given population. So the amount of land needed to produce enough food and water and absorb the waste of a given population. So what is that total area of land expressed in those terms to sustain a population? So that is a correct answer. But keeping in mind that we have an answer choice all of the above. We're going to mark that correct but keep on going to see if there are multiple correct answers. Choice B says the amount of food needed to sustain the population. Well, this is part of the definition of ecological footprint as we discussed, but it's not a complete answer because it's about more than just the amount of food needed. So choice B is not correct. It's not a complete enough definition. That's not the right color there. We want red to mark that wrong. So since we've eliminated at least one answer, we can also eliminate choice D. All of the above. That is not going to be our answer. And finally let's look at choice. See the amount of natural environment needed by a population. Well, that's again part of the answer. The natural environment will help absorb waste. It will be part of the water um that the population needs but it's not complete again because it also involves um the amount of landing to produce the food to sustain the population. So choice see again partially correct but not complete enough to be the answer. So we're gonna eliminate choice C. And that leaves us with choice A The amount of land needed to sustain a population's use of resource. For a definition of ecological footprint. See you in the next video.

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