appliance - is a piece of equipment, usually electrical, that you use in your home, such as a washing machine, hair dryer, cooker, etc, backpacking - the activity of travelling to different places, carrying all your luggage in a single backpack, challenge - something difficult which you want to or have to try and do, charge - when somebody asks you to give them a certain amount of money when they sell something to you, do a job for you, or allow you to do a particular activity, cruise - a holiday you take on a ship, often stopping at some interesting places, ecotourism - the business of helping people take holidays in places that are environmentally interesting and where the activities do not cause any harm to the environment, equipment - things like tools and machinery that are used for a particular task, fresh water - is water that is clean and suitable for drinking or cooking, low-impact - that do not cause much damage to the environment, pollution - things like chemicals and smoke from factories that damage the air that we breathe or the rivers and land, route - the exact direction you follow to get from one place to another, rubbish/trash - stuff that people throw away, tax - is money that a government makes you pay,

INTERMEDIATE UNIT - Life 4 - 8c - All aboard!

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