In honey, with a picture, and a cyro solution.
Hope this helps!
Answer: Gneiss
Explanation: Gneiss is a metamorphic rock formed from shale at very high temperature and pressure condition. They exhibit a preferred alignment or orientation of platy minerals called foliation. They are coarse grained and exhibit gneissose banding. They are formed from highest grade regional metamorphism with temperature between 450 - 600 degree celcius and pressure between 800 - 1000 mega pascal. They generally occur in cores of fold mountain belts where mountain ranges have been eroded.
A meander is best described as a bend or curve in a stream channel.
They touch the Gulf<span> of Guinea.</span>
I think its C) Released by the Geo-sphere because volcanos give off the same exact gases and have been around long enough to give off enough gas to create an atmosphere.