Biodiversity was fictionalized in accord with our sub-theme. Rain forests are the places that contain the most diverse living creatures and are richest in animals and plants. However, the human factor causes several species in these forests to become extinct, so they cannot be identified and their chances to use (such as raw material of drug) were not learned. This is emphasized with greenhouse. Similar to rain forests, a greenhouse contains long trees, plants growing under the shadows of these trees and the climbing and hanging plants which surround the trees.