bogs are areas of land that are acidic and waterlogged. plants living in bogs don't fully decay when they die, because there's not enough oxygen. partly-rotted plants gradually build up to form peat
deforestation is the cutting down of trees
peat bogs are often drained so that the area can be used for farmland
deforestation can cause many problems: less carbon dioxide is taken in ; more carbon dioxide is released in the atmosphere and less biodiversity happens
cutting down many trees means that less carbon dioxide is removed from the atmosphere