In botany, a tree is a perennial plant with an elongated stem, or trunk, supporting branches and leaves in most species. A tree typically has many branches supported clear of the ground by the trunk. This trunk typically contains woody tissue for strength, and vascular tissue to carry materials from one part to another. Trees usually reproduce using seeds. Flowers and Fruit may be present, but some trees, such as conifers, instead have pollen cones and seed cones. Trees are of invaluable importance to our environment and to human well being. They give us clean water to drink, the air to breathe, shade and food to humans, animals and plants. Trees are so important for the global environment and the health of the species that live there, and they need our unconditional care and protection. The unity and usefulness of plants and tress cannot be exaggerated or over-estimated. Forests have many functions. Trees are used as food both by men and animals. Some herbs and plants are used to prepare medicines and spices. Wood is also used as fuel and it is necessary to make furniture. Another very important function of trees is to purify air through photosynthesis. They supply oxygen (O2) and absorb the harmful carbon-di-oxide (CO2) from air. Soil erosion which posting a great threat now-a-days, can be stopped only by planting and protecting more trees. Forests cause normal rainfall which can control flood and prevent drought. Trees provide shade to tired travellers and animals and shelter to birds.
But it is very unfortunate that trees are now being mercilessly felled by unscrupulous people. This should be stopped at any cost. Efforts are, however, being made by the government for proper preservation and plantation of trees.
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