The seven primary mental abilities in Thrustone's model were verbal comprehension, word fluency, number facility, spatial visualization, associative memory, perpetual speed,and reasoning.
3x+2=29
3x=27
x=9
Hope this helps
Reduces the visual acuity or sharpness
Alcohol, or any other drug which reduces the supply of oxygen in the bloodstream, can impair the sensitivity of the cones which, in turn Reduces the visual acuity or sharpness.
