Airlines sometimes reroute planes away from polar regions during solar storms because
a. radio communication can be affected by solar storms.
b. solar storms can lead to severe turbulence.
c. solar storms increase air temperature, which can present a danger.
d. the plane could get hit by particles.
e. the sky can become too bright for safe navigation.
Question 2
Normally, solar wind approaches Earth at an average speed of ____.
a. 300 km/sec
b. 400 km/sec
c. 500 km/sec
d. 100 km/sec
e. 1000 km/sec