To improve residents' lives, Hyderabad is planting trees and parks. The city is even creating "greener" buildings that use less water and less electricity for power. Adding green to a city has a number of advantages. For example, trees remove pollution from the air and make it cleaner. In Hyderabad, streets were gray and ugly a few years ago. Today, they are filled with trees and flowers, making the city cleaner and more colorful. Green areas also give people places to relax or exercise and walk. A study in the U.S. showed something else interesting:the greener a neighborhood is,the less crime there is a against people and property--especially buildings and cars.