In a rainforest, plants may struggle to obtain adequate sunlight due to the dense canopy formed by taller trees, which can block light from reaching the understory plants. This limited access to sunlight can hinder their ability to perform photosynthesis effectively, affecting their growth and overall health.
Conversely, in a desert environment, plants face challenges in obtaining sufficient water, which is crucial for photosynthesis. The arid conditions and low humidity can lead to rapid evaporation, making it difficult for desert plants to maintain the moisture necessary for their photosynthetic processes.