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a measure showing the number of dependents (aged 0-14 and over the age of 65) to the total...
the factor that changes in an investigation and is not under the control of the investigator....
a drug that inhibits (slows down) the action of the nervous system.
the process of removing salt and other minerals from seawater, to make it drinkable.
the conversion of previously productive land into desert.
remove starch from the leaves of a plant by preventing photosynthesis from occurring (for a few...
the medical condition whereby the body is unable to control the levels of glucose in the blood...
the process whereby certain substances are removed from a liquid and others retained, due to...
the sheet-like muscle found below the ribcage that plays a vital role in breathing.