| Answer | Crossword Clue |
|---|---|
| SMOG | Subject of an exhaustive E.P.A. study? |
| AIR | Subject of E.P.A. monitoring |
| ALAR | Subject of a 1989 E.P.A. ban |
| RAVEN | E.A.P. subject |
| ECOL | E.P.A. subject: Abbr. |
| CITY | Half of an E.P.A. rating |
| CITY | Half of an E.P.A. mileage rating |
| transcendental | (of a number, e.g., e or p) Real but not a root of an algebraic equation with rational roots |
