what steps were taken to clean up London?
1) Remove the housing problem by constructing apartment for the people who will not be migrated from any other places.
2) Principle of garden city which to means to grow more tree and plant that help to remove pollution and should be more clean environment.
3) Transport systems had been improved by the way of railway, bus and other transportation system.
4) Control of criminal and their activities the police are more hard and they had done their best to catch the criminal
5) Houses built by the British government and classified then on the basis of famer,labour,small scale labour that helps to clean London.