### Question
How is the "acid precipitation" defined?


### Answer
The term **acid precipitation** is defined in *42 U.S.C. § 8901* as follows -

> the wet or dry deposition from the atmosphere of acid chemical compounds

#### Citation:
  - *42 U.S.C. § 8901*
  - Heading: **CHAPTER 97-ACID PRECIPITATION PROGRAM AND CARBON DIOXIDE STUDY > SUBCHAPTER I-ACID PRECIPITATION**

