- 1. The water at Dzerzhinsk is contaminated with dioxins and phenol at levels that are reportedly seventeen million times the safe limit. Which country does this city belong to?
- 4. This chemical element with symbol As is said to be found in rice and rice products.
- 2. This South Asian nation came back to inorganic farming 6 months after its overnight ban on chemical fertilizers.
- 3. An area of chemistry focused on designing products that minimize or eliminate the use of hazardous substances.