Here's why:

* Warm: Rainforests are located in tropical regions near the equator, experiencing consistently warm temperatures year-round.

* Wet: Rainforests receive extremely high levels of rainfall, often exceeding 80 inches per year. This constant moisture is crucial for the lush vegetation they support.

While "rainforest" is the most common term, you might also encounter other names depending on specific characteristics:

* Tropical rainforest: This emphasizes the location and climate.

* Lowland rainforest: This refers to rainforests at lower elevations.

* Montane rainforest: This term is used for rainforests found at higher altitudes.

Ultimately, all these terms describe the same type of lush, biodiverse ecosystem.