1. Natural geographical reasons: Tropical rainforests are widely distributed in the Amazon Plain, belonging to primitive rainforests, which are extremely unsuitable for living (who wants to live in a forest full of mosquitoes and poisonous snakes).
2. Forest resources (rainforest resources) are of great significance for regulating global water balance and atmospheric carbon and oxygen balance. Rainforest absorbs a lot of CO2, which is called the lung of the earth.