Select all that apply. select all items that describe kinda of externalities 1.) secondhand smoke. 2.) air pollution from truck. 3.) i clean water from fertilizers. 4.) spillovers from medical research.

The items that describe externalities are:

2) air pollution from a truck

3) unclean water from fertilizers

And maybe 4 as well, but I’m not 100% sure

Hope this helps

-AaronWiseIsBae

The answer is air pollution from trucks and unclean water from fertilizers

answer; /// representative democracy restricting trade,is your correct answer;