Question

1. According to the map, what was the change in the length of Canada's ragweed pollen season from 1995 to 2015?

Answer 1

six to 25 days

Step-by-step explanation:

U.S. and Canadian researchers reported in 2016 that ragweed pollen seasons had grown longer, by six to 25 days, in 10 U.S. and Canadian locations between 1995-2015