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What is the main ecological effect of warm water in thermal pollution?
  • a)
    Increased oxygen levels in water.
  • b)
    Decreased metabolic rates in aquatic animals.
  • c)
    Enhanced growth of blue-green algae.
  • d)
    Reduction in soil erosion.
Correct answer is option 'C'. Can you explain this answer?
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What is the main ecological effect of warm water in thermal pollution?...
Warm water from thermal pollution leads to lower oxygen levels and may cause the proliferation of blue-green algae.
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What is the main ecological effect of warm water in thermal pollution?...


Ecological Effect of Warm Water in Thermal Pollution:

Thermal pollution refers to the increase in water temperature caused by human activities, such as industrial processes or power generation, which can have significant ecological impacts on aquatic ecosystems.

Enhanced Growth of Blue-Green Algae:
- One of the main ecological effects of warm water in thermal pollution is the enhanced growth of blue-green algae.
- Blue-green algae, also known as cyanobacteria, thrive in warm water conditions and can rapidly multiply in response to increased temperatures.
- As these algae proliferate, they can form harmful algal blooms, which can deplete oxygen levels in the water, leading to fish kills and other negative impacts on aquatic life.

Impact on Aquatic Ecosystems:
- The excessive growth of blue-green algae can disrupt the balance of aquatic ecosystems by outcompeting other aquatic plants for resources such as sunlight and nutrients.
- This can lead to a decrease in biodiversity, as well as changes in water quality and ecosystem function.

Conclusion:
In conclusion, the main ecological effect of warm water in thermal pollution is the enhanced growth of blue-green algae, which can have detrimental effects on aquatic ecosystems. It is important to mitigate thermal pollution to protect the health and integrity of aquatic environments.
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Passage 2After the end of World War II, a pervasive, but unfortunately fallacious, economic perspective took hold. Based on the United States successful emergence from the Depression, the idea that war was good for an economy became fashionable. However, linking the United States economic recovery with its entry into World War II is a prime example offlawed economic thinking.Supporters of the war benefits economy theory hold that a country at war is a country with a booming economy. Industry must produce weapons, supplies, food, and clothing for the troops. The increased production necessitates the hiring of more people, reducing unemployment. More employment means more money in the pockets of citizens, who are then likely to go out and spend that money, helping the retail sector of the economy. Retail shops experience an increase in business and may need to hire more workers, further reducing unemployment and adding to the economic momentum. While this scenario sounds good in theory, it does not accurately represent what truly happens in a war time economy.In reality, the government can fund a war in a combination of three ways. It can raise taxes, cut spending on other areas, or increase the national debt. Each of these strategies has a negative impact on the economy. An increase in taxes takes money out of an individuals hands, leading to a reduction in consumer spending.Clearly, there is no net benefit to the economy in that case. Cutting spending in other areas has its costs as well, even if they are not as obvious.Any reduction in government spending means the imposition of a greater burden on the benefactors of that government spending. Cutbacks in a particular program mean that the people who normally depend on that program now must spend more of their money to make up for the government cuts. This also takes money out of consumers hands and leaves the economy depressed. Of course, a government could go into debt during the war, but such a strategy simply means that at some point in the future, taxes must be increased or spending decreased. Plus, the interest on the debt must be paid as well.Q. Which of the following situations best mirrors the effect that cutting spending in government programs has, as detailed in the passage?

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What is the main ecological effect of warm water in thermal pollution?a)Increased oxygen levels in water.b)Decreased metabolic rates in aquatic animals.c)Enhanced growth of blue-green algae.d)Reduction in soil erosion.Correct answer is option 'C'. Can you explain this answer?
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