Life could not exist without gravity, food would not go down further into our bodies easily, And there would be no water on earth because it would all float off into space. An advantage of weightlessness is you can move much faster and jump much higher and it will be very easy to pick things up. But two disadvantages would be that you float off into space and you can't stand. If i had the option to travel to space or not i would not because it is difficult to shower and eat and do normal activities.
