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These words are all related to sustainability and renewable energy, which are important topics in today's world. From the conservation of natural resources to the use of renewable energy sources, there are many ways to promote a more sustainable future. If you want to learn more about these topics, you can try playing this crossword.
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Not just a great way to pass the time, our crossword also provides a great way to keep your brain fit. In fact, they are educational and many teachers, students and parents alike around the world make use of it.