8. What is it called when a meteor shower has a frequency of at least one meteor per second? A. meteor storm C. The end of the world B. meteor shower D. meteor outburst 9. What is the common name for random meteor storms (not annual meteor showers)? A. meteor flash C. heavy meteor storm B. surprise meteor shower D. meteor outburst 10. What do you call the brief glow behind a meteor? A. Wake B. Flash C. afterglow D. trail​