Economic depression coupled with extended drought, unusually high temperatures, poor agricultural practices and the resulting wind erosion all contributed to making the Dust Bowl.
Answer:
It solved the problem of represention.
Answer:
"The 1518 smallpox epidemic killed 90% of the natives who had not already perished. Warfare and harsh enslavement by the colonists had also caused many deaths. By 1548, the native population had declined to fewer than 500."
Explanation:
Put this in our own words but here you go.
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I believe the answer is “C” but i’m not 100% sure.
The answer to this question is: Valid
For example, let's say that a researcher wants to study the psychology of motivation as a variable.
In this case, motivation does not possess a measurable standard that could be used as data, so the researcher could only predict thte amount of motivation through the amount of job done (but this data is reliable because motivation is only on of the many factors that may influenced it)