BTB is an indicator that helps us to see if carbon dioxide or oxygen are present in a solution by changing colors. BTB is blue when mostly s present, and yellowish-green when mostly is present. This occurs because the indicator can sense the of the solution. In the experiment that you looked at, a plant called Elodea was added to a test tube that originally was color. This transformation occurs because the process of photosynthesis turns experiment shows that matter is transformed from the reactants and and in color, but changed to a into into the products + The

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Photosynthesis

Plants have a capacity that we humans can only imagine— the ability to produce food from sunlight. Sure, we can prepare some dishes that we can savor on, but it become possible because of the plants (as they serve as a producers of all the raw materials required). Photosynthesis is the method of assembling carbohydrates with the aid of sunlight.