A. nitrogen
If it's not that then it's D
Answer:
Heat and pressure.
Explanation:
It takes an extreme amount of heat and pressure to transform an igneous rock into a metamorphic rock.
The correct answer is C. componentes of the American System.
The American System is the name given to a plan created by Henry Clay. And the purpose of that plan was to help American Business during a period of difficulty to compete with the British prices. So, with the components: A Tariff, a National Bank and Roads and Canals, the American System would be a way for the US to become independent from Europe.
I think the "it" is the Battle of Puebla, 5th May 1862, right?
The world power at the time was France, which was especially strong militarily, and was seen as one of the strongest armies at the time.
