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What is produced in the proton-proton chain?
Document Delivery
The process of supplying documents, such as journal articles or reports, to users, often via electronic means.
Document Publisher
A software or service that enables the creation and distribution of documents in various formats.
Probability Sampling
A sampling technique where each member of a population has a known and often equal chance of being selected.
Purposive Sampling
A non-random sampling technique where subjects are selected based on their unique characteristics or qualities relevant to the research.
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