This post is also available in: Español (Spanish)
How much do you know about decentralised wastewater treatment? Take our quiz and put your knowledge to test in just a few minutes! If you are having any trouble, remember that all answers to quiz questions can be found throughout this Toolbox element. Good luck!
Decentralised Wastewater Treatment Quiz by Usama Khalid is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.