CBSE Class 9 Answered

The value and purpose of trees is enormous; and their existence is vital for our survival. Trees help to combat global warming by absorbing carbon dioxide, removing and storing carbon while releasing oxygen back into the air. They also reduce wind speeds and cool the air as they lose moisture and reflect heat upwards from their leaves. They help to prevent flooding and soil erosion, by absorbing thousands of litres of stormwater. From birds and insects, to bats and squirrels, trees provide a canopy and a habitat for many species of wildlife. Trees help to improve air quality by intercepting and trapping dust and other pollutants from the air. The shade of trees also provides a useful barrier to harmful ultra-violet radiation from the sun. Trees can bring people together. They can act as a landmark within a neighbourhood and encourage pride amongst people within that community. Trees and woodland areas can be used to bring people together for educational purposes. They also allow for activities such as walking or birdwatching. In addition, they give children somewhere to play in and feel a sense of adventure.