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a)Incomplete combustion of coal releases many poisonous gases like carbon monoxide in the environment. This carbon monoxide gas is fatal to health, can lead to coma and even death of the persons sleeping in that room.
b)In kerosene lamp, yellow flame is produced due to partial combustion of kerosene. this partial combustion is due to lack of Oxygen. But in wick stove, it burns with blue flame because a perforated cylinder is placed around burning wicks. Through these holes, air is supplied continuously.
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Photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.
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