MCQOPTIONS
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| 1. |
As per a journal Water Research, every day about ________ trillion pieces of micro plastics go through wastewater treatment plants and end up in the aquatic environment. |
| A. | 2 |
| B. | 4 |
| C. | 6 |
| D. | 8 |
| E. | 10 |
| Answer» E. 10 | |