If you were creating a PSA about building a green roof, which sources would be reliable for researching the topic? Check all that apply.
a gov or org website on green roofs
an article from a government organization on how green roofs improve air quality
a blog about how green roofs are a fun activity for community gardeners
newspaper articles reporting on how green roofs absorb heat in cities
a net or com website that shows a company’s opinion on sprinklers to install on green roofs