Which method of garbage disposal do you think will be most cost effective in a hill town which contains about 200 houses spread over a large area on a couple of hills ? Share with your friends Share 2 Tamoghna Basu answered this biodegradable waste are best way and non - biodegradable -1 View Full Answer Priyansha answered this waste water treatment plan 3 Vaishnavi Princess answered this Obvio waste water treatment plant...... 1