'Peat' is an important source of domestic fuel in several countries. How is 'Peat' formed in nature ? 

Explanation

Peat is an accumulation of partially decayed vegetation or organic matter.
Formation of Peat : When plant material, usually in wet areas, in inhabited from decaying fully because of acidic and anaerobic conditions, it result in formation of peat. Peat is mainly composed of wet land vegetation. Sphagnum is the main producer of peat, but many other plants may also be involved in peat formation. Peat accumulation is usually slow, at the rate of 1 millimeter per year.