As used in the last paragraph, the word ” millennium” most nearly means  

“Also, if a hold is put on a student’s account for an unpaid parking ticket or an overdue library fine, the student cannot register until the hold has been removed.”   The above sentence is a statement of  

The tone of this passage is  

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

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

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?