The following would be considered reliable sources:
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Peer reviewed journal: These are typically considered highly reliable because the research has been evaluated by experts in the field before publication.
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2021 Science textbook: Textbooks, especially recent ones published by reputable publishers, are usually considered reliable sources for foundational knowledge in a subject.
YouTube and Wikipedia generally do not meet the criteria for reliability without additional scrutiny, as they can contain unverified information and may not be authored by credible experts.