6) Which of the following impact is NOT rated "High" at the Fracture stage of fracking?(1 point)%0D%0AResponses%0D%0A%0D%0ASurface Impact%0D%0ASurface Impact%0D%0A%0D%0ASeismic activity%0D%0ASeismic activity%0D%0A%0D%0AWater stress%0D%0AWater stress%0D%0A%0D%0AWater contamination

Water contamination.