please answer

from National Public Radio (NPR), paragraph 1 states, "Across the United States, communities of color face disproportionate exposure to pollution. Big polluters like refineries, factories, landfills and factory farms were routinely built in non- white communities, exposing their residents to elevated health risks as a result." This is an example of what (check all that apply)? Environmental injustice O Diminishing returns O Opportunity cost Spillover Voluntary exchange