Which group used terrorism in the late twentieth century? United Nations

Indian National Congress

OPEC

al-Qaeda

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al-Qaeda

Explanation:

OPEC is a petroleum organization and the United Nations try to preserve peace and don't look for terrorism. Indian National Congress was striving for peace.

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tenochtitlan (also spelled tenochtitlán), located on an island near the western shore of lake texcoco in central mexico, was the capital city and religious centre of the aztec civilization. the traditional founding date of the city was 1345 ce and it remained the most important aztec centre until its destruction at the hands of the conquering spanish led by hernán cortés in 1521 ce, which led to the final collapse of the aztec empire.