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The Great Sphinx in Giza is one of the most fascinating historical monuments of all and a national symbol of both ancient and modern Egypt. It was built about 4,500 years ago and is the biggest stone sculpture made by man. Every year, millions of tourists come to see the Sphinx. Unfortunately, wind, smog and acid rain are putting this wonderful monument in danger. If we want to reduce acid rain we must burn less fossil fuels.
Burning coal, oil and gas releases huge amounts of sulphur* into the atmosphere. This is what creates acid rain. The best way to solve the problem is to use alternative energy sources to produce our electricity. Factories which use solar and wind power instead of the traditional fossil fuels can really help the environment. Another thing we can do is make cars and other vehicles more environmentally friendly. We need to stop using petrol. Instead, we can use cars that are electrically powered or run on some other fuel. In this way, the atmosphere will be cleaner and our monuments will stay beautiful.