88. Which activity will help freshwater stay clean the most and why? A. Mixing food and garden waste for composting will save fresh water B. Introducing new fish species for an aquaculture project add water purifiers. C. Leaving crop residues to cover newly harvested cornfields prevents soil erosion D. Disinfecting wastewater at the discharge points treats water before infiltration to soil.
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Answer:
Both B and D
Explanation:
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The answer B and D are correct.
Explanation:
- Water purifiers will help to clean the water and manage the level of chemicals in it.
- Introducing new fishes in the water will help the water to stay clean because the natural fauna and flora will grow with new speices increasing overall bichemical activity of water.
- Disinfecting wastewater at discharge points treats water before inflitration to soil will help the water to stay clean as no chemicals will be added to fresh water.
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