P2(2) Flashcards

1
Q

What are the stages of sewage treatment?

A
  1. Screening and grit movement
  2. Sedimentation
  3. Anaerobic digestion of sewage sludge
  4. Aerobic biological treatment
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2
Q

Define independent variable

A

Something you can change

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3
Q

Define control variable

A

Something you can’t change (same)

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4
Q

Define dependant variable

A

Thing you measure

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