<span>C. the rate of primary productivity
</span>Since primary productivity is measured in three ways (A<span>mount of CO2 used,</span>
<span>rate of sugar formation and </span><span>oxygen production) these don't control the climate, but can change it. Unlike the other options.</span>
Claiming it as a historic item (which it is) through a document prevents common people to be affiliated with harming it. So by saying it is of significant history, citizens and tourists will not be able to do anything to jeopardize the natural landmark
Answer: The answer is D, population density.
Answer:c
Explanation: Population density is a measurement of population per unit area, or exceptionally unit volume; it is a quantity of type number density. It is frequently applied to living organisms, most of the time to humans.
