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Unit 13 Section B We’re trying to save the earth! Endangered animals Desertification Natural disasters Pollution How to save the pla? Check easy (E) or difficult (D). ____* stop riding in cars. ___* recycle books and paper. ____* turn off the lights when you leave the room. ____* refuse to use the plastic bags. ____* don’t put the waste water into the river. ____* plant more trees and grass. ____*…. A: I think recycling books and paper is really easy. B: I agree. But it’s difficult to stop riding in cars. E D to what Julia and Jack talk about. Check the things. Things Julia an