
There are two types of rainforests: temperate and tropical.
The world’s largest rainforest is the Amazon Jungle! This massive rainforest covers 1.4 billion acres (5,500,000 square kilometers). At the heart of Amazonia is the Amazon River, the largest river in the world.
Source: Storyteller.Travel

The most abundant element in the universe is hydrogen, which makes up about three-quarters of all matter! Helium makes up most of the remaining 25%. Oxygen is the third-most abundant element in the universe. All of the other elements are relatively rare.
Source: Hyperphysics, R. Nave

Norway (12) and the United States (11) have the most of the world's tallest top 40 natural waterfalls.
Source: Wikipedia

According to PPIC's 2021 environmental report, Californians are most likely to say that the state’s top environmental issue today is water supply and drought. Full report here.

According to PPIC's 2021 environmental report, 55% of Californians say the threat of wildfires is a big problem in their part of the state. Find the full report here.