What do you call it when man and machine digs the Earth? Mining What do you call it when we re-use what we buy? Recycling Acid rain, ozone depletion, spilled oil and factory smoke are examples of what? Pollution What do you call it when man and machine plant the Earth? Farming Where can you find coal, copper and iron? Under ground Why do farmers use pesticides? To help protect crops Name three things that can be recycled. Cans, bottles and paper Should everybody practice recycling? Yes!