The Tropical Rain Forest
Tropical rain forests have a rain fall rate of 50 to 260 inches per year. The humidity all year ranges from about 77% to 88%. Rain forests cover less than 6% of the Earth's surface. Scientists estimate that more than half of the world's plant and animal species live in tropical rain forests. Tropical rain forests produce 40% of the Earth's oxygen.
Tropical rain forests have a rain fall rate of 50 to 260 inches per year. The humidity all year ranges from about 77% to 88%. Rain forests cover less than 6% of the Earth's surface. Scientists estimate that more than half of the world's plant and animal species live in tropical rain forests. Tropical rain forests produce 40% of the Earth's oxygen.