The air pollution makes the caribou unhealthy, and this makes them more vulnerable to predators and diseases.
Specifically, the food the caribou digest (for example lichens) absorb the pollution dispoportionally, which means that the caribou ingest many unhealthy particles.
The last state to officially recognize Christmas was Oklahoma when it joined the union in 1907.
I think p = 80 because
10% of 80 = 8
8 x 5 years = 40$
They Inhabited New Zeland, so it would be 4.