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The Mariana Trench, the deepest part of Earth's oceans, was discovered by the crew of the HMS Challenger in 1875.

fact or opinion

User Swasidhant
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1 Answer

8 votes

Answer: I would say this is a fact

Step-by-step explanation:

If it was an opinion it would contain some form of Bias, which it doesn't

User Marne
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