Can you please add the choices?
Thank you very much
Answer: ozone concentration
Explanation: The Dobson Unit is the most common unit for measuring ozone concentration. Becuse ozone concentration is hard to measure they use The Dobson Unit.
Answer:
Probably determining the best way to generate clean energy in Maine :)
They probably chose this over black since black absorbs he most heat, and if something like a power outage occurs during the hot summer, ya want to stay as cool as possible...this is just my idea.