6. As used in line 34, "burst" most nearly means
A. breach.
B. eruption.
C. force.
D. fracture.
7. The passage most strongly suggests that which of the following statements is accurate?
A. Although scientists have observed patterns in sunspot activity, it is not always possible to predict when sunspot activity will occur.
B. Scientists will not be able to solve the mystery of what causes sunspots until technology allows astronauts to travel to the sun.
C. Unless scientists find a way to control sunspot activity, radio and satellite communication on Earth will continue to be interrupted.
D. The next minimum could interfere with weather prediction and cause drastic changes in the climate on Earth.
8. Which choice provides the best evidence for the answer to the previous question?
A. Lines 18-21 ("When another … pattern")
B. Lines 33-35 ("The interaction … flare")
C. Lines 50-51 ("Sunspots … cycle")
D. Lines 66-70 ("If we … fields")
9. As used in line 48, "enhancing" most nearly means
A. developing.
B. enlarging.
C. improving.
D. intensifying.
10. Which lines from the passage are supported by the evidence in the graphic?
A. Lines 14-16 ("Galileo … early 1600s")
B. Lines 25-27 ("Most recently … 2020")
C. Lines 51-52 ("there was … 1715")
D. Lines 61-63 ("Sunspot activity … 20 years")