The tone of this passage is  

The author’s primary purpose in writing this passage is to  

According to the passage, dogs are prone to all of the following EXCEPT  

The strongest force we know is

The Sun’s chromosphere and corona were discovered

How do astronomers know how strong the magnetic field of the Sun is?

Here is the Final Exam

Which of the following statements about the Sun’s photosphere is NOT TRUE?

This man served as governor of Illinois (and weathered a storm of criticism when horse meat was labeled as “beef” during his tenure) and later went on to receive the Democratic nomination for president twice in the 1950s.  

The Volstead Act made the prohibition of alcohol effective in the United States.  It was difficult to enforce and set up an entirely separate illegal economy.