The soviet Union is primarily responsible for the pollution in the region of Central Asia. The correct option among all the options that are given in the question is the first option. The Soviet Union is one country that depends highly on coal based electricity generation. These power stations release toxic gases that are a reason for global warming.
I am not completely sure what this is asking but I believe it would be. That the evidence would be that the fish would be getting less oxygen hence causing noticeable breathing problems (probably best spotted by looking at the lungs).
Answer:
The percentage increse was 12,000,000
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Explanation:
