Today, energy is run out. Many people in mountainous areas have to gather wood to use as fuel. So, we should use the wind and the sun energy effectively. We should turn off the lights before going to bed. We should avoid using car or motorbikes for short tips. We must use public transport. We should ruduce the use of fossil fuels. We should use sources of energy more wisely, for the future, and the future of the planet.
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