I think the answer is D.
Hope this answered your question ;-;
Answer:
Different threshold
Explanation:
Since the person was asked to listen to a series of tones presented in pairs, and at the same time was expected to say whether the tones in each pair are the same or different in pitch, then the person experimenting is most likely measuring different treshold of the tones in pairs.
Answer:
C. People who come across for a regularly scheduled event
Explanation:
Resistance movement is the effort by the portion of civil population to withstand the legally established government and to disrupt stability and civil order. Both force and nonviolence means could be used to seek the objectives. It can also operate under different organisations and spread in different phase in different areas of a country.
The answer is :Radiocarbon dating
In radiocarbon dating, we use a radioactive isotope of carbon in organic material as our main factor of measurement.
Before this method started to become popular, the method that is used to determine the age of artifact was by measuring how deep it's burried, which is far more unreliable since there would be many factors that can caused the depth of the burial beside the age.
