yangyang718
29.01.2020 •
Chemistry
Examine the chemical equation al + o2 al2o3
what is a product in this reaction?
aluminum oxide
aluminum
oxygen
oxyaluminum
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Ответ:
Criteria for the implementation of drinking water:
where drinking water comes from and its qualitytechnical interventionhygiene education for communityregulations, laws and managementsroutine water sampling and analysisLimitations:
availability of resources (human, finance, equipment)geographical conditionsclimatological conditionscommunity and authority and transport infrastructureExplanation:
For more information:
https://www.who.int/water_sanitation_health/dwq/gdwqvol32ed.pdf?ua=1https://www3.epa.gov/region1/eco/drinkwater/your_drinkwater_source.html