Ex4. Complete the advice with words from Exercise 3.
* Don't leave your electronic devises on when you go to sleep.All those little red or green lights more energy than you think!
* Don't 4 water. Have shorter showers, and when you brush your teeth don't use water until the end.
* how much meat you eat by going vegetarian one day a week.
* the heating and put on
* a jumper.
* 7 plastic bags and bottles so you can use them again.

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