Why is there a concern about copper smelting plants? 1. They may release lethal quantities of carbon monoxide into environment. 2. The copper slag can cause the leaching of some heavy metals into environment. 3. They may release sulphur dioxide as a pollu

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Q: (IAS/2021)
Why is there a concern about copper smelting plants?
1. They may release lethal quantities of carbon monoxide into environment.
2. The copper slag can cause the leaching of some heavy metals into environment.
3. They may release sulphur dioxide as a pollutant.
Select the correct answer using the code given below. I

question_subject: 

Ecology

question_exam: 

IAS

stats: 

0,114,218,18,114,18,182

keywords: 

{'copper slag': [0, 0, 0, 1], 'copper': [1, 0, 1, 1], 'carbon monoxide': [3, 0, 1, 1], 'sulphur dioxide': [0, 0, 0, 1], 'leaching': [1, 0, 0, 2], 'pollutant': [1, 0, 0, 1], 'heavy metals': [1, 0, 0, 0], 'plants': [11, 0, 4, 4], 'lethal quantities': [0, 0, 0, 1]}

The correct answer is 2 and 3 only.

Copper smelting plants are a concern for the following reasons:

They may release lethal quantities of carbon monoxide into the environment - This is not a specific concern related to copper smelting plants. Carbon monoxide is a common pollutant released by various industries and vehicles.

The copper slag can cause the leaching of some heavy metals into the environment - Copper slag is a byproduct of the copper smelting process, and it contains various heavy metals such as lead, cadmium, and arsenic. If not disposed of properly, the copper slag can cause the leaching of these heavy metals into the environment, which can lead to contamination of soil and water sources.

They may release sulfur dioxide as a pollutant - The copper smelting process involves the combustion of fossil fuels, which can result in the release of sulfur dioxide into the atmosphere. Sulfur dioxide is a harmful air pollutant that can cause respiratory problems and contribute to acid rain.