Respuesta :

PilotLanter
the following three things can wipe out  a water bear (AKA: tardigrade)

1.A nearby star goes supernova and sends deadly radiation pummeling toward Earth

2.A gamma ray burst from an unknown origin fries Earth

3.Asteroid impact

Answer:

Had to do a little research-

1. A nearby star goes supernova and sends deadly radiation pummeling toward Earth

2. A gamma ray burst from an unknown origin fries Earth

3. Asteroid colliding with the earth's surface