<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>
North America is the Third largest continent in the world
hope this helps -Kaden
The National Mall is a long narrow but open area where many museums are located, but I'm not sure if that's the correct answer.
Central America does not produce wheat, rye or canola or apples or bauxite for aluminum or fir lumber but it does produce many tropical fruits like mangoes, papayas, guavas, oranges, limones, and vegetables like avocados and cilantro and cumin.
