Examlex
____________________ was the first person to see that the Moon had mountains, hills, craters, and broad plains.
Research
The organized examination and analysis of materials and sources to discover facts and draw new conclusions.
Surveys
Research methods involving the collection of data from a predefined group of respondents to gain information and insights on various topics.
Interviews
A formal meeting in which one or more persons question, consult, or evaluate another person.
Observation
The act of closely monitoring or noting phenomena or behaviours through systematic scrutiny.
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