A tree is a plant that has a trunk and branches, and usually reaches a large size. Trees can be deciduous or coniferous, their leaves and needles can be green, gray, blue or other colors. Trees play an important role in ecosystems, providing oxygen, improving soil quality and providing shelter for many species of animals. Trees are also used in various industries, such as construction, paper production, furniture and other goods. Some trees can live for more than 1000 years, and their age can...
