![How much percent of impurities are enough to make domestic sewage unfit for humans?](https://www.gkseries.com/blog/wp-content/uploads/2022/09/How-much-percent-of-impurities-are-enough-to-make-domestic-sewage-unfit-for-humans.png)
Q. How much percent of impurities are enough to make domestic sewage unfit for humans?
- 0.1 percent
- 1 percent
- 5 percent
- 10 percent
Answer: 0.1 percent
Answer: 0.1 percent
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