Chemical- contains nutrients and vitamins that the body needs to survive and sustain . For example water is made up of hydrogen and oxygen, in which life wouldn't be without oxygen
physical- water is naturally clear and pure free from artificial processing and colors which positively caters to the healthy look of a person
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Answer:all the things that you keep the same in the experiment
Explanation:
Proteins are large molecules composed of one or more chains of amino acids in a specific order determined by the base sequence of nucleotides.
Carbohydrates are any of various neutral compounds of carbon, hydrogen, and oxygen.
Fat is a fuel source for the body, fat is the major storage form of energy in the body.
If there is no oxygen , the cells go through anaerobic respiration which leads tot he build of lactic acid in the muscles. This is why we get sore and feel the burn during a workout.