One Question Per Page true false About _____ of Christmas trees bought by British people are grown in the UK. 2 When a natural Christmas tree is growing, it has a _____ effect on the environment, because it takes in carbon and nitrogen. 1 When a natural Christmas tree is cut down, it has a _____ effect on the environment, because carbon goes back out into the air. 2 If a natural tree decomposes under the ground, it produces _____, which is a greenhouse gas. 2 You would probably have to reuse an artificial tree for _____ for it to have less effect on the environment than a natural tree. 1 The choice between a natural tree and an artificial tree _____ to your yearly carbon footprint. 2 Buying _____ that is finally burnt produces the same carbon emissions as driving 12 miles. 1 Buying _____ that is finally buried underground produces the same carbon emissions as driving 135 miles. 2 https://339efcb25eb75e967b0d-ff8eeadd950d51fd1fc939dca75b3973.ssl.cf1.rackcdn.com/assets_default.swf