5.
If one knows that normal rainfall is slightly acidic, which pH range will it fall into when tested?
between 7 and 9
between 5 and 7
greater than 12
less than 2
1 answer
between 5 and 7
If one knows that normal rainfall is slightly acidic, which pH range will it fall into when tested?
between 7 and 9
between 5 and 7
greater than 12
less than 2
1 answer