BROUGHT ON BY WEIGHTLESSNESS IN PROTRACTED SPACE FLIGHT, BESIDES T...

69. Brought on by weightlessness in protracted space flight, besides the obvious hazards of meteors, rockydebris, and radiation, astronauts also have to deal with muscle atrophy.a. Brought on by weightlessness in protracted space flight, besides the obvious hazards of meteors,rocky debris, and radiation, astronauts also have to deal with muscle atrophy.b. Besides the obvious hazards of meteors, rocky debris, and radiation in protracted space flight,astronauts also have to deal with muscle atrophy, which is brought on by weightlessness.c. In protracted space flight, besides the obvious hazards of meteors, rocky debris, and radiation,astronauts also have to deal with muscle atrophy brought about through weightlessness.d. Besides the obvious hazards of protracted space flight, which include meteors, rocky debris, andradiation, astronauts also have to deal with another problem, which is the muscle atrophy thatoccurs after an extended period of weightlessness.e. Besides the obvious hazards of meteors, rocky debris, and radiation, astronauts in protracted spaceflight also have to deal with muscle atrophy brought on by weightlessness.