CPR Short for cardiopulmonary resuscitation. A first-aid technique that involves performing chest compressions and mouth-to-mouth breathing on a patient.
elevation The height or altitude at which something exists.
fabric Any flexible material that is woven, knitted or can be fused into a sheet by heat.
hydrate (noun: hydration) To restore the proper level of fluids in the body.
organ (in biology) Various parts of an organism that perform one or more particular functions. For instance, an ovary is an organ that makes eggs, the brain is an organ that interprets nerve signals and a plant’s roots are organs that take in nutrients and moisture.
physiologist A scientist who studies the branch of biology that deals with the bodies of healthy organisms function under normal circumstances.
risk The chance or mathematical likelihood that some bad thing might happen. For instance, exposure to radiation poses a risk of cancer. Or the hazard — or peril — itself. Among cancer risks that the people faced were radiation and drinking water tainted with arsenic.
terrain The land in a particular area and whatever covers it. The term might refer to anything from a smooth, flat and dry landscape to a mountainous region covered with boulders, bogs and forest cover.
weather Conditions in the atmosphere at a localized place and a particular time. It is usually described in terms of particular features, such as air pressure, humidity, moisture, any precipitation (rain, snow or ice), temperature and wind speed. Weather constitutes the actual conditions that occur at any time and place. It’s different from climate, which is a description of the conditions that tend to occur in some general region during a particular month or season
