Answer:
It was admitted to the Union as a free state.
Explanation:
Maine was admitted as a free state under the terms of the Missouri Compromise. This was balanced by Missouri being admitted as a slave state.
Trade barriers come in many forms. Quota is one. This is when a country sets a limit to the imported products. This is done for a number of reasons. One is because the government of the importing country wants to protect its domestic manufacturers. Other barriers or limitations are added costs such as tariffs, duties, and taxes.
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