Final answer:
Yes, the given sentence is a run-on sentence that can be corrected by using appropriate punctuation or conjunctions.
Step-by-step explanation:
Yes, the given sentence is a run-on sentence.
A run-on sentence occurs when two or more independent clauses are joined together without appropriate punctuation or conjunctions.
In this case, the given sentence can be corrected by using appropriate punctuation or conjunctions to separate the independent clauses: 'The laurel is an evergreen tree. The ancient Greeks used laurel leaves in crowns for the winners of the Pythian games.'
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