The absorption of CO2 by plants is closely related to the intensity of photosynthesis. The more carbon dioxide absorbed, the stronger the photosynthesis. At this time, the faster the chloroplast synthesizes organic matter and accumulates sugar, the most suitable for plant growth. In addition, the growth of plants shows the accumulation of organic matter, and the more sugar intake, the more unfavorable it is to the accumulation of organic matter, so this statement is not valid and is for reference only.