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The biggest limitation of the COD test is that the test cannot differentiate between biologically active and inactive organic matter

79. The biggest limitation of the COD test is that the test cannot differentiate between biologically active and inactive organic matter.

1. The dispersion method should be employed to weaken the effects of pollutants.
2. Fission Reaction should be minimized as far as possible.
3. Production of radioisotope should be minimized.
4. All of the above.

Answer: D) All of the above

Explanation:

The following measure will reduce radioactive pollution:

• The dispersion method should be employed to weaken the effects of pollutants.
• Fission Reaction should be minimized as far as possible.
• Production of radioisotope should be minimized.