__________is the apt label that has been given to campaigns that masquerade as grassroots mobilizations, but are not

Which of the following pieces of legislation first required agencies to file environmental impact statements?

a. the National Environmental Policy Act b. the Clean Water Act c. the Clean Air Act d. the Superfund Act

The trapping of the earth’s heat in the atmosphere by heat-absorbing gases is called the _______________________.

Fill in the blank(s) with the appropriate word(s).