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the water that is found underground in soil pore spaces and in the cracks and spaces within rock formations.
molecule that forms when carbon dioxide attaches itself to the amino group of a haemoglobin...
the sheet-like muscle found below the ribcage that plays a vital role in breathing.
an infectious disease that is widespread in tropical and subtropical parts of the world and is...
the inner most layer of the cortex of roots and some stems of plants.