Https://www.popsci.com/ufo-aliens-military basically yes they do, its a fact all ufo means is unidentified flying object, it just means u dont know what it is, whether or not they are aliens is an entirely different matter, ufos are very well documented by credible sources, aliens not so much
Answer:
Here's the answer
Explanation:
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Negotiable: the ability for compromise
to occur
exchangeable: the ability for anything to be traded / exchanged
stable: balanced ( whether mentally, physically, or emotionally )
If I'm not mistaken it's the letter C
