Q. The unit parts per million is identical to (Solved)
1. Grains per galleon
2. Pounds per cubic foot
3. Milligrams per kg
4. Tonnes peracre foot
5. None of the above
- c. Milligrams per kg
1. Grains per galleon
2. Pounds per cubic foot
3. Milligrams per kg
4. Tonnes peracre foot
5. None of the above