1. Select the options that you know for water safety problems.（you may select more than one options）
A) Water bloom B) red tide C) bacterium infection
2. What are the reasons of water bloom?
A) eutrophia B） temperature C）light density
3. What is the creature that caused water bloom?
A) bacterium B) Cyanobacteria C) fungi
4. Select the two places where water bloom happened （you may select more than one options）
A）Poyang Lake B）Yaihu Lake C) Chaohu Lake
5.
Write one lake where water bloom happened outside of China
6. What is the most important factor in water bloom that causes drinking water safety problem?
A）Microcystin B )bacterium infection C ) smelly water
7. What will happen if drinking water after water bloom? （you may select more than one options）
A）diarrhoea B）emesia C）hepatic failure
8. What is your suggestion for ensuring water safety and solving water pollution?
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