<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>
The British conquered Myanmar, and the French conquered Laos, Cambodia, and Vietnam in the the 1800's and 1900's, and the conquerors always leave some of their culture behind. Hope this helps. Good luck!
Answer:
I wanna say A the Panama Canal
Explanation:
I could be wrong