The change in phosphorous levels between 1965 and 1975 is 6 times greater than between 2008 and 2014.
Your information is incomplete as the data or numbers aren't givsn. Therefore, an overview will be given.
Let's assume that the change in phosphorous levels between 1965 and 1975 is 12000. Also, the change in phosphorus level between 2008 and 2014 is 2000.
Therefore, the number of times greater will be gotten by dividing them. This will be:
= 12000/2000
= 6
In conclusion, the number of times is 6 times.
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