G7-SCI-L13 Waste water story
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is wastewater?
Clean water
Dirty water
Drinking water
Rainwater
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why should wastewater be cleaned?
To save money
To conserve water
To prevent pollution
To create energy
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the International Decade for action on 'Water for life'?
2000-2010
2005-2015
2010-2020
2015-2025
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of manholes in a sewerage system?
To dispose of wastewater
To remove pollutants
To change the direction of sewers
To locate clean water sources
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in the wastewater treatment process?
Aeration
Filtration
Disinfection
Sedimentation
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of sand filters in wastewater treatment?
To remove pollutants
To add oxygen
To disinfect water
To produce biogas
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the final step in the wastewater treatment process?
Disinfection
Aeration
Filtration
Sedimentation
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