The common synonyms are usually unknown, uncertain, unclear, etc.
Answer:
Explanation:
Serbian-American engineer and physicist Nikola Tesla (1856-1943) made dozens of breakthroughs in the production, transmission and application of electric power. He invented the first alternating current (AC) motor and developed AC generation and transmission technology. Though he was famous and respected, he was never able to translate his copious inventions into long-term financial success—unlike his early employer and chief rival, Thomas Edison.
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It is a framework for quality improvement developed by the Centers for Disease Control and Prevention to use data for action to prevent healthcare-associated infections
Explanation:
a fact can be proven, while an opinion is an idea shared that cannot (or has not yet) be proven.
