It is D. Currently the United Nations has sixteen peacekeeping operations that are performing critical functions such as protecting civilians.
just took the test
A paradox contradicts itself so therefore it would have to be “Well, one must be serious about something, if one wants to have any amusement in life.”
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Answer: A would be the answer hope it helps
Explanation:
First off do you mean the game tetris? If so here is the answer:
Tetra is a prefix which means “four” and is used when forming compound words. In tetris, we use pieces (called tetrominos), which are formed by combining 4 small blocks (called minos). There are 7 possible types of tetrominos named after the letters that they resemble: I, O, L, J, T, S, and Z.