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What is the difference between an extrasolar planet and a sub-brown dwarf?
Valid
Something that is logically sound, well-founded, or legally binding, often used to describe arguments, contracts, or data.
Cultural Background
The cultural experiences and factors that shape an individual's or group's values, beliefs, and behaviors.
Reliable Survey
A survey method that consistently produces accurate and trustworthy results.
Valid Survey
A research tool that has been tested for reliability and accuracy, ensuring that it measures what it is intended to measure.
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