Examlex
A controlled test of a hypothesis,in which the researcher manipulates one variable in order to discover its effect on another variable,is called:
Document
A written, printed, or electronic record that provides information or evidence.
Analysis
The process of examining components or structures of something methodically and in detail, often to understand it better or to draw conclusions.
Business Document
A written piece of work used in a professional setting, such as reports, memos, proposals, or emails, that conveys information or arguments.
Photographs
Images captured by a camera that represent moments or scenes, often used for documentation, art, or memory preservation.
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