The truck carrying 2130 mg/lt chloride overturns and the pollutant spreads over an area of 40.95 m2, groundwater average velocity If 0.375 m/day a-) After 133 days, where is the center of the pollution cloud relative to the beginning? b-) What is the size and spread of the cloud at this time? c-) Meanwhile, what is the concentration in the center of the cloud?

I want to answer this question quickly please