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  1. Hace 1 día · CO2 levels are increasing. In addition to industrial pollutants, wind can also transport ash, acids, aerosols, dust, and photochemical reactants halfway around the world in as little as a ___. week. Health advocates argue that companies should pay for air pollution prevention upfront.

  2. U.S. National Ambient Air Quality Standards are the _____ allowable emissions for six pollutants that contribute the largest volume of air degradation and are also the most serious threat to human health and welfare.

  3. Environmental impact study scoping refers to. A. designating specific geographic areas that a contemplated action will affect. B. estimating the specific population that a contemplated action will affect. C. designating which environmental issues of a contemplated action are most significant.