Facts is the highest form for referrence of knowledge which s formulated with hard science. However, facts can also be fabricated and faked. So it needs be carefully eveluated and scrutinized just as opinions are.
Answer:
Imagination is abstract
Invention is abstract
Key is concrete
Explanation:
Naming words for concrete bodies are concrete nouns
While abstract terms are represenred by abstract nouns
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Jargon Fam.....................................................................
Aggressive, anxious, independent
