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chemicals used as the propellants in aerosol sprays, as coolants in fridges, air conditioners and polystyrene, which damage ozone molecules in the ozone layer.
the condition caused by a severe shortage of both energy and nutrients in the diet over an...
coiled thread-like structures of DNA and histone, which is a protein, in the cell nucleus. They...
many-celled, complex organisms with cell differentiation and specialised tissues performing life...
the first step of cellular respiration in which glucose is converted to pyruvic acid with small...