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For questions that require definitive, factual, answers based on Real World science that are backed up by equations, empirical evidence, scientific papers, etc. Compare to: science-fiction, science-based and internal-consistency. This tag may not be used alone. This tag may not be used with the science-fiction, science-based, or internal-consistency tags. REVIEW THE WIKI BEFORE USING THIS TAG and flag your question for moderator attention once posted.

REVIEW THE WIKI BEFORE USING THIS TAG! For questions that require unequivocal proof that answers are correct through the use of equations, empirical evidence, scientific papers, etc. Compare to: science-fiction, science-based and internal-consistency. This tag may not be used alone. This tag may not be used with the science-fiction, science-based, or internal-consistency tags. Flag your question for moderator attention once posted.

For questions that require definitive, factual, answers based on Real World science that are backed up by equations, empirical evidence, scientific papers, etc. Compare to: science-fiction, science-based and internal-consistency. This tag may not be used alone. This tag may not be used with the science-fiction, hard-science, or internal-consistency tags. REVIEW THE WIKI BEFORE USING THIS TAG and flag your question for moderator attention once posted.

For questions that require definitive, factual, answers based on Real World science that are backed up by equations, empirical evidence, scientific papers, etc. Compare to: science-fiction, science-based and internal-consistency. This tag may not be used alone. This tag may not be used with the science-fiction, science-based, or internal-consistency tags. REVIEW THE WIKI BEFORE USING THIS TAG and flag your question for moderator attention once posted.

For questions that require definitive, factual, answers based on Real World science that are backed up by equations, empirical evidence, scientific papers, etc. Compare to: science-fiction, science-based and internal-consistency. This tag should never be the only tag on a question because this tag frames how a question should be answered, not the topic. REVIEW THE WIKI BEFORE USING THIS TAG and flag your question for moderator attention once posted.

For questions that require definitive, factual, answers based on Real World science that are backed up by equations, empirical evidence, scientific papers, etc. Compare to: science-fiction, science-based and internal-consistency. This tag may not be used alone. This tag may not be used with the science-fiction, hard-science, or internal-consistency tags. REVIEW THE WIKI BEFORE USING THIS TAG and flag your question for moderator attention once posted.