Examlex
LED bulbs use 85% less energy and last up to 25 times as long as incandescent bulbs.
Difficulty Breathing
A sensation of not being able to draw a deep breath or experiencing shortness of breath; a symptom of various medical conditions.
Fatty Substance
A general term for organic compounds that are insoluble in water but soluble in nonpolar solvents, including fats, oils, waxes, and certain vitamins.
Alveoli
Microscopic air sacs within the lungs where the exchange of oxygen and carbon dioxide occurs.
Carbon Dioxide
A colorless, odorless gas produced by burning carbon and organic compounds and by respiration. It is naturally present in air and is absorbed by plants in photosynthesis.
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