Coal forms from the accumulation of plant debris, usually in a swamp environment. When plant debris dies and falls into the swamp the standing water of the swamp protects it from decay. Swamp waters are usually deficient in oxygen, which would react with the plant debris and cause it to decay.
Porokeratosis is generally considered to be a benign condition though malignant transformation has been seen in all but the punctate variety, necessitating regular followup of patients with porokeratosis (Maubec et al., 2005; Sasson & Krain, 1996).
Papaver somniferum, or opium poppy plant, is the plant from which the painkillers morphine and codeine are derived, as well as opium and heroin.Its seeds are commonly used in cooking when baking muffins, cakes and bagels.The Central Intelligence Agency lists Papaver somniferum as an illicit drug. As of May 2010, growing Papaver somniferum opium plant is illegal in the United States. The opium poppy is extensively cultivated in China, India, Persia and Turkey.ts seeds are commonly used in cooking when baking muffins, cakes and bagels. The Central Intelligence Agency lists Papaver somniferum as an illicit drug. As of May 2010, growing Papaver somniferum opium plant is illegal in the United States. The opium poppy is extensively cultivated in China, India, Persia and Turkey.