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Answers
1.the scarity of water
2.un_water:gender
3.Water pollution can cause water to become toxic to humans and the environment. Water is an essential resource for all life on Earth. If a water source becomes contaminated due to pollution, it can lead to health issues in humans, such as cancer or cardiovascular conditions.
4.___i don't know_____
5.Sewage system improvements include two specific techniques: converting basic septic systems to either centralized sewer systems or advanced septic systems, and repairing existing sewage system components.
6.Human development will remain the main focus of developing countries post-2015. In this regard, the transition of developed countries to equitable and sustainable consumption will make it easier for developing countries to pursue their human development goals in a more environmentally sustainable way.
7.Human excreta and the lack of adequate personal and domestic hygiene have been implicated in the transmission of many infectious diseases including cholera, typhoid, hepatitis, polio, cryptosporidiosis, ascariasis, and schistosomiasis.
8.untreated industrial waste being dumped
The writer is talking about the threat of untreated industrial waste being dumped into rivers.
idk the answer of 9 and 10