The correct answer is - the release of methane from thawed permafrost.
In the past decade it has been noticed that the levels of methane are increasing in the atmosphere, and the biggest ''producer'' of this methane is the melting permafrost. There's huge amounts of methane trapped underground bellow the permafrost. But the permafrost is melting because of the global worming, so the methane is free to come out and go up in the atmosphere.
More hydrogen ions means more acidic, more hydroxide ions means more basic
I'm not sure but I think the answer is A. Plants. Then again I'm not 100% sure that this is correct
Parkinson's disease
<span>Parkinson's disease results from deterioration of brain's nerve cells</span>
Four chambered heart keeps oxygenated and deoxygenated blood separate and has double circulation while three chambered heart has a single circulation. Two chambered heart only has single atrium and single ventricle
