Which of the following statements best explains the absence or sparcity of undergrowth in the equatorial rain forest?
Answer Details
The statement that best explains the absence or sparsity of undergrowth in the equatorial rainforest is that the taller trees cut off most of the sunlight. The canopy of tall trees in the rainforest is so thick that it blocks most of the sunlight from reaching the forest floor. This lack of sunlight makes it difficult for undergrowth plants to grow, as they require sunlight for photosynthesis. Therefore, the undergrowth in the equatorial rainforest is sparse, and most of the plant life is found in the canopy and understory layers of the forest.