Now a days there is no greenery except tall buildings.we need green cities back just like the past.we used to sit down of the trees and enjoy with our friends or families but now we are enjoying in restaurants and hotels there is many differences between enjoyment in hotels and enjoyment below the trees we can feel the nature and enjoy the movement.trees is useful for many reasons such as for breathing,for rainfall,and for feeling the nature.we need to grow more trees and make our city to a green city.there will be one day in the future where there will be no trees and greenery except tall buildings the we can realize the importance of green cities.there is one small way to protect our greenery by reducing the usage of vehicles and avoiding pollution.