JDeezy wrote:Hi BP, thanks for doing this, really helping me out.
I'm struggling with PT23 S3 Q13 (LR on seals in the Baltic and Scottish Seas.) "E" is correct but I really can't grasp how it is better than "A."
Alright, so I've got a bunch of dead seals.
Baltic - significant percentage died
Scotland - about half the percentage died
Presumed cause? Pollution
Why? The Baltic seals had a lot of pollutants in their blood, and pollutants decrease the ability of marine mammals to fight off viral infection.
So I've got a causal argument that I'm trying to strengthen.
The causal argument:
Pollutants in blood ---> More deaths from virus
If I want to strengthen this, I need to either:
1) Provide the same cause with the same effect
2) Show a situation where there was no cause and no effect
3) Rule out an alternate cause
E most definitely falls under 1. The other marine mammals also died at higher rates in the Baltic than in Scotland. This tells me that the massive die-off of the seals in the Baltic wasn't due to something else that just affected the seals.
A is tricky. But look at the stimulus - the first premise tells me that the death rate DUE TO VIRAL DISEASES was approx. half. So telling me that a lot of seals that died were old or unhealthy doesn't change the fact that I have a bunch that died of the virus. And I'm trying to find a reason why it hit the Baltic seals worse than the Scottish ones. Knowing that the Scottish seals were old and sick gets me nowhere closer to that.