8
QuizMultiple Choice

The Sun — Quiz

Question 8 • Earth and Space Science

Which solar event most directly caused GPS signal interference on June 13?

Answer
A
elevated cosmic radiation on the ISS
B
voltage fluctuations in Quebec’s grid
C
auroras visible at low latitudes
D
the X2-class solar flare and CME

Explanation

The X2-class solar flare and its associated coronal mass ejection (CME) were the solar event most directly linked to GPS signal interference. Solar flares and CMEs can disturb Earth’s ionosphere, which GPS signals pass through, causing delays or disruptions. The other choices describe related effects or observations, not the direct solar event.

AI-written and checked against the verified answer.

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