Question

Given below are two statements:

Statement 1: The value of the parameter “Biochemical oxygen demand (BOD)” is important for survival of aquatic life.

Statement 2: The optimum value of BOD is $6.5\mathrm{ppm}$.

In the light of the above statements , choose the most appropriate answer from the given below.

• A. Both statement 1 and 2 are false
• B. Statement 1 is false but statement 2 is is true
• C. Statement 1 is true but 2 is false
• D. Statement 1 and statement 2 are true

Answer 1

The correct option is C

Statement 1 is true but 2 is false

Answer (C)

Explanation for correct option:

For survival of aquatic life dissolved oxygen is responsible for its optimum limit $6.5\mathrm{ppm}$ and optimum limit of BOD ranges from $10-20\mathrm{ppm}$ and BOD stands for biochemical oxygen demand.

Hence option (C) is correct answer .