Question

13. Run-off pollution of a particular river resulted
from overuse of chemical fertilizers by a nearby
farm. Which of the following graphs correctly
shows the resulting changes in levels of oxygen
and bacteria in this river?

plz plz answer with full explanation.....
tommorow is exam ..so plz answer with explanation​

Answer 1

Answer:

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Answer 2

Option (A) is an appropriate answer.

Eutrophication:

• Eutrophication is the manner wherein a water frame will become overly enriched with nutrients, main to the considerable boom of easy plant life.

Explanation:

• When chemical fertilizers are washed into the river, eutrophication occurs.
• This affects a boom withinside the attention of microorganisms and the next fall in oxygen attention after the runoff pollutants occur.

Run-off pollutants of a selected river resulted from the overuse of chemical fertilizers through a close-by farm.

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