Answer:
The answer is D. The period of isolationism.
Explanation:
US Commodore Matthew C. Perry´s mission was to make Japan open to trade. He first arrived in 1853, conveying a letter from the president of the United States. He returned in 1854. Perry´s mission effectively forced the end of the self-imposed isolation of Japan which had existed since the first half of the 17th century. Japan was closed to the outside world by the Tokugawa shogunate, only Dutch vessels were permitted to anchor at Yokohama´s bay and conduct limited trade with the Japanese.
Heat causes chemical reaction so that might be a way in which people use chemical properties to separate one substance from another substance .
The answer is C hope this helps
Explanation:
The difference between a confederal system and a federal system is that each confederation member state is the holder of supreme power while the federal units in a federal state have no power, given the fact that sovereignty is exclusively vested in the federal state.