This PowerPoint presentation shows 36 slides with very descriptive photographs of Natural Resources and how people modify the environment and use them.The presentation begins by introducing natural resources and gradually shows how people modify the environment, clearing land, building roads and houses, using land for agriculture irrigating crops, drilling for oil, mining, building dams, airports, shopping malls, highways, dams, stadiums, bridges, amusement parks, aquariums, among others.The sl