<u>Answer:
</u>
All the statements except statement B are true.
<u>Explanation:
</u>
- The magnetic field reversals that have happened on earth from time to time are evident from the geological features found near the mid-oceanic ridge.
- The rock stripes stopped developing in a single direction after the polar direction of the region changed. Hence, the patterns that are seen in the rock stripes can be deemed as proof of magnetic field reversals from time to time.
In the first half of the 1800s, the arrival of large numbers of immigrants affect economic conditions in US cities because there were fewer jobs available.
Answer: Option B
<u>Explanation:</u>
During the end of the 1800, a large number of people from all parts of the world decided to leave their home land and shift to the United States which had adverse effects on this country.
This led to the deficiency and reduction in the availability of land and jobs available and also led to the failure of crops. There also came a situation of famine in that country.
The theory of<u> </u><u>rational expectations</u> assumes that individuals will use all information available to them to form the most accurate possible expectations about the future.
The rational expectations theory posits that individuals base their choices on human rationality, facts available to them, and they're beyond stories. The rational expectancies idea is a concept and principle used in macroeconomics.
In economics, "rational expectations" are model-steady expectations, in that retailers within the version are assumed to "know the model" and on common take the model's predictions as valid. Rational expectancies ensure inner consistency in fashions related to uncertainty.
The rational expectations hypothesis implies that all financial dealers (companies and laborers) can foresee and expect long-run financial improvement. It's far assumed that they understand how the version works and that there may be no asymmetry of facts.
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