PBL - Day 1 (Wastewater treatment)

What is chemical formula for water?

• H₂O

• HO₂

• 2HO

• HO

Tags

NGSS.MS-PS1-1

Water pollution occurs when harmful and toxic waste, or chemicals, enter water bodies and gets dissolved.

• True

• False

Tags

NGSS.MS-LS2-4

NGSS.MS-ESS3-4

NGSS.MS-LS2-5

How does the development of urban area affect the river?

• No effect at all

• Water remains stable

• Pollutes the water

• Water tastes funny

Tags

NGSS.MS-LS2-4

NGSS.MS-ESS3-3

NGSS.MS-ESS3-4

What disease is cause by water pollution? Except ...

• Cholera

• Influenza

• Tuberculosis

• Chickenpox

How could pesticides get into lakes and streams?

• too much could be used
• it could be sprayed too close to a stream
• rain could wash pesticides into a stream
• all of the above

Tags

NGSS.MS-LS2-4

Which one is the characteristic of wastewater?

• Does not contain pathogenic micro-organisms

• Safe to health

• Used water from residential, commercial, and industrial areas

• Free from breeding sites for insects, pests and micro organism

These are steps of wastewater treatment, except:

• Flocculation

• Saponification

• Coagulation

• Sedimentation

Cleaning of water is a process of removing ____________.

The treatment of wastewater is commonly known as

• Cleaning of Water

• Sewerage Treatment

• Sewage Treatment

• All of the above

Tags

NGSS.MS-ESS3-3

NGSS.MS-ETS1-2

Which of the following is waste water ?

• Water leaking from a damaged tap

• Water coming out of a shower

• Water coming out of laundry

• All of the above