BOD 5 isA- Waste decomposed in 5 daysB- Oxygen used in 5 daysC- Microorganisms killed in 5 daysD- Dissolved oxygen left after 5 days

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Standard XII

Biology

What Is Sewage and Its Effects

BOD 5 isA. Wa...

Question

$B O D_{5}$ is

Waste decomposed in 5 days

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Oxygen used in 5 days

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Microorganisms killed in 5 days

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Dissolved oxygen left after 5 days

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Solution

The correct option is B Oxygen used in 5 days
$B O D_{5}$ means the 5 day biochemical oxygen demand. $B O D_{5}$ is a parameter used to determine water quality.

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BOD5 is

The correct option is B Oxygen used in 5 daysBOD5 means the 5 day biochemical oxygen demand. BOD5 is a parameter used to determine water quality.

$B O D_{5}$ is

The correct option is B Oxygen used in 5 days
$B O D_{5}$ means the 5 day biochemical oxygen demand. $B O D_{5}$ is a parameter used to determine water quality.