Rainforests have _____ over millions of years to turn into the incredibly _______ environments they are today. Rainforests represent a ________ of living and breathing _________ natural resources that for eons, by virtue of their richness in ________ animal and plant species,have _____ a wealth of resources for the survival ______ well-being of humanking . These resources have _____ basic food supplies, clothing, shelter, fuel, spices, ____ raw materials, and medicine for all those who have lived ____ the majesty of the forest