Examlex
In the relational data model, associations between tables are defined through the use of primary keys.
Physics Exam
A Physics Exam is a formal assessment or evaluation of an individual's knowledge and understanding of the principles of physics.
Studying
The act of devoting time and attention to acquiring knowledge on an academic subject, especially through reading.
Correlation And Causation
The principle that a relationship between two variables does not automatically indicate that one causes the other.
Body Piercings
Modifications of the body by puncturing or cutting parts of the human body, creating an opening in which jewelry may be worn.
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