Marsh ~ Swamp ~ Bog [closed]
Solution 1:
Interesting question. In my everyday British English, I might describe a patch of soft ground as either boggy or marshy, but from a scientific point of view marshes are coastal or riverside wetlands, and peat bogs are acidic areas of ancient rotting vegetation, often on higher ground. I found various sites by searching 'difference between marsh and swamp', such as this one