The correct answer is D. They stop making chlorophyll
Explanation:
The regular green color in leaves is mainly the result of chlorophyll, which is essential for photosynthesis. This substance stops being produced by plants during the fall, and this causes leaves to lose their characteristic color. Additionally, this process is the result of shorter days, and therefore fewer daylight hours, which reduces or stops the production of chlorophyll. At the same time, the carotenoids which are red, yellow, and orange pigments begin to be visible. Thus, the reason leaves change color in the fall is that they stop making chlorophyll.
The atom is made of three subatomic particles. protons, neutrons, and electrons. The protons and the neutrons make up the center of the atom called the nucleus and the electrons fly around above the nucleus in a small cloud.
Cellular respiration and photosynthesis are important parts of the carbon cycle. The carbon cycle is the pathways through which carbon is recycled in the biosphere. While cellular respiration releases carbon dioxide into the environment, photosynthesis pulls carbon dioxide out of the atmosphere.
