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Energi Terbarukan dan Konservasi Energi Energi terbarukan adalah sumber daya yang dapat diperbaharui secara alami, seperti matahari, angin... -
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Light: How It Works 1. What Is Light? · Definition : Light is a form of energy that allows us to see things. · Straight Li... -
What Is Sound? · Definition : Sound is a form of energy that travels in waves and can be detected by our ears. · How...
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