Amazon rainforest in Brazil
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).
The two parts of Malaysia are: The Peninsular Malaysia, that borders Thailand and the East Malaysia, which is mostly placed on the Borneo Island, shared with Indonesia.
They are divided by the South China Sea, so the correct answer is C. South China Sea
