Which feature is characteristic of a tropical rainforest?

A tropical rainforest is characterized by its high biodiversity, dense canopy, warm temperatures, and high annual rainfall. This ecosystem supports a vast array of plant and animal species, making it one of the most biodiverse regions on the planet. The dense canopy formed by the tall trees creates a multilayered environment, which allows a variety of species to thrive at different heights, contributing to the overall biodiversity.

The warm temperatures found in these regions are typically stable throughout the year, rather than experiencing significant fluctuations. This, combined with the high annual rainfall—often exceeding 2000 mm (79 inches)—creates a humid and lush environment conducive to diverse plant growth. The constant availability of moisture supports not only the trees but also a myriad of other plants and animals, making tropical rainforests vital ecosystems for global biodiversity and climate regulation.

In contrast, the other choices do not accurately reflect the defining characteristics of a tropical rainforest. Low biodiversity and high elevation, for instance, suggests a completely different biome, like mountainous regions or arid zones, where species richness is often limited. Additionally, cool temperatures and limited rainfall would point towards climates such as temperate or arid environments, which are not representative of tropical rainforests. Lastly, the mention of seasonal changes and