| 1 | When gasoline burns, nothing visible remains. | |
| 2 | Soak the vegetables to clear the remnant of pesticides before cooking. | |
| 3 | But most treatments do not remove all drug residue. | |
| 4 | Residuals are room-temperature solids made up of molecules with 30 or more carbons. | |
| 5 | The term "tolerance" refers to the maximum allowable residues in products intended for human consumption. |
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