Answer:
Incomplete question
Complete question; Scuba AND advancements OR technology
Which of the following best describes the likely results of this search when the following Boolean logic?
-sources that reference the first two terms and exclude the third
-sources that reference the first term and either of the remaining two
Answer: sources that reference the first term and either of the remaining two
Explanation:
The sources that reference the first term has to do with name of the author/brand/model, which is very vital in this case above. The other things that can follow are year and sector the article indicates (Technology for instance).
Answer: Perceptual adaptation
Explanation: Since Stefan was involved in an experiment concerning the study of vision and the wearing of glasses that invert his vision, it took some time to perform a perceptual adaptation. Perceptual adaptation is, in fact, the means by which the brain perceives differences, most often as in this case in the field of vision, which Stefan witnessed.
This data is called "secondary data".
An example for a usage of a secondary data is when a researcher takes up a data collected by someone else, for exam ple a large survey, and analyses this data to receive new insights from it - this is a fairly common practice. Often for example official government data is used by scientists
The Persian Wars wound up strengthening Greece, particularly Athens and Sparta, and weakening the Persian army and navy to the point where Alexander the Great (of Macedonia) with a combined Greek army, was able to defeat Persia in his expedition two generations later.
