Although plants are essential for all life on Earth,more plants die each year. Natural disasters, such as fires, and hum activities have destroyed approximately 50 percent of the world's forests today, there is a growing demand for more building materials and more land to raide animals and grow crops. As a result, many trees are cut down, but the effects of deforestation, or destruction of the trees,are troubling Meanwhile,large number of plants and animals are losing theri habitats.