Question

1. what is the \biggest factor\ causing the dead zone to grow, and what direct correlation have scientists found? 3. how can \short - term weather patterns\ like heavy winds and waves temporarily reduce the dead zones size? 4. according to the text, what is the ultimate goal of reducing the dead zone? part 2: research and propose a solution the text mentions \several plans to reduce the size of the dead zone.\ research one of these plans and describe it below. 5. describe a solution: based on your research, describe one specific plan or method proposed to reduce the nitrogen runoff that causes the dead zone.

Explanation:

1. Without the text, it's hard to say the exact biggest factor. But often excessive nutrient runoff, especially nitrogen and phosphorus from agricultural activities, is a major cause. Scientists may find a direct correlation between nutrient - load levels and the growth of the dead zone.
2. Heavy winds and waves can stir up the water column. This mixing can bring oxygen - rich surface water to deeper areas, temporarily increasing the oxygen levels in the dead zone and reducing its size.
3. The ultimate goal of reducing the dead zone is usually to restore the ecological health of the affected water body. This includes supporting a diverse range of aquatic life, improving water quality for human use (such as fishing and swimming), and maintaining the overall balance of the ecosystem.
4. One method to reduce nitrogen runoff is the use of cover crops. Cover crops are planted during periods when the main cash - crop is not growing. They can absorb excess nitrogen in the soil, preventing it from running off into water bodies when it rains.

Answer:

1. Without the text, no specific answer. But major factor can be nutrient runoff; correlation may be between nutrient - load and dead - zone growth.
2. By mixing water and bringing oxygen - rich surface water to deeper areas.
3. To restore ecological health of the water body.
4. Use of cover crops to absorb excess soil nitrogen.