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www.reference.com/world-view/trees-important-a7bb233ca271990c

Some of the reasons that trees are so important to the environment include the fact that they clean the air, clean the soil, produce oxygen and slow storm water runoff, according to About.com. Trees also control noise pollution, provide shade for protection from the sun and much more.

www.reference.com/science/many-kinds-trees-2608c24406e29e02

The two basic kinds of trees are coniferous and deciduous, which branch into a variety of types and species. The exact number of tree species in the world is undetermined because only a small percentage of plant or animal species have been discovered and classified.

www.reference.com/article/trees-provide-b8e4fcd963c91e06

One of the most important things that trees give people is oxygen to breathe. Trees also give shade, house animals and muffle noise.

www.reference.com/article/eats-trees-9bcf1fe303cdde13

While no living animal subsists on a diet of entire trees, many different animals eat individual portions of trees. For example, animals such as deer, elephants and giraffes consume a large quantity of leaves and fruit, but little else. By contrast, termites are one of the few animals in the world t

www.reference.com/article/tree-plant-7c55115cf79a3722

A tree is a plant. Trees are perennial plants that use photosynthesis to make their own food like other plants. They have woody stems and trunks and tend to live for many years.

www.reference.com/article/trees-grow-68558c2a0395dd10

Trees grow as a result of the formation and division of cells in meristems and by conducting photosynthesis and absorbing nutrients and water through their root systems. Cells in the cambium layer divide and grow to form bark cells, contributing to the tree's outward and upward growth.

www.reference.com/world-view/trees-important-environment-ab93dadf959503c2

Trees benefit the environment by helping to keep it free from toxins, supplying life on Earth with nutrients and combating the negative effects of harmful gases that exist in it. Trees allow consumers to save energy, further helping to reduce the impact of the overuse of resources.

www.reference.com/world-view/group-trees-called-1adb8f77df7ffc4f

The name for a group of trees depends on the number of trees in the vicinity: small groups of trees are called groves or copses, while forests refer to larger groups of trees that cover landscapes and may include entire biospheres, such as rainforests and tiagas. Groups of trees exist around the wor

www.reference.com/article/baby-tree-called-f6b045d675cf5412

A baby tree is called an infant, just like a baby human. During this phase, the trees are very thin and small, and though many grow on their own, human interaction with care and attention can help them thrive.

www.reference.com/science/animals-live-trees-c7ea2040ba039453

Animals that live in trees include the flying lemur, the spider monkey, the tree kangaroo, the koala, the squirrel monkey, the greater glider and the tarsier. Arboreal animals range from primates and mammals to birds, insects, reptiles and amphibians.