I think it’s eutrophication
30.6 • 150 is the same as 4,500 + 90, or 4,590 million kilometers, oddly enough, this isn't one of the options for an answer. Perhaps there was a typo?
The Tundra.. IT HAS THE COLDEST TEMPS.
.............................Correct.
Answer:
It should be change in behavior because they moved underground
