How does photosynthesis benefit plants?

Photosynthesis is a fundamental process that occurs in plants, allowing them to convert light energy into chemical energy. During this process, plants use sunlight to transform carbon dioxide from the air and water from the soil into glucose, a type of sugar that serves as an energy source for growth and metabolism. Additionally, through photosynthesis, oxygen is released as a byproduct, which is essential for the survival of many organisms, including humans.

This conversion of light energy into chemical energy is crucial because it forms the base of the food chain, supporting not only the plants themselves but also the herbivores and carnivores that rely on plants for nourishment. Therefore, choice B accurately reflects the primary benefits of photosynthesis to plants, emphasizing the creation of glucose and the release of oxygen, which are vital for life on Earth.

The other options do not accurately convey the core benefits of photosynthesis. For example, while plants do absorb carbon dioxide, they do not release nitrogen as part of the photosynthetic process. Similarly, the process of aiding in plant respiration and soil nutrient absorption is not a direct function of photosynthesis, and while transpiration is a water loss mechanism, it is not a source of water for roots but rather a means of regulating temperature and nutrient