VEhrlich’s dire projections differed from those of Malthus in that he applied the principle of geometric progression to:


A. vital resources such as oil, copper, and top soils.


B. significant climate change variables.


C. increasing species die-off.


D. the comparison of birth rates according to social class.

An; A

To determine the answer to this multiple-choice question, we need to understand the key differences between the projections of Ehrlich and Malthus. Ehrlich's projections apply the principle of geometric progression to a specific area, which we need to identify.

To do this, we can look at the options provided in the question. We need to find the area to which Ehrlich applied the principle of geometric progression.

Option A states that Ehrlich applied the principle of geometric progression to vital resources such as oil, copper, and top soils. This statement aligns with Ehrlich's projections, as he indeed used the principle of geometric progression to analyze the depletion and scarcity of vital resources.

Therefore, the correct answer is A. Ehrlich applied the principle of geometric progression to vital resources such as oil, copper, and top soils.