Which of these is NOT currently a source of energy? A. the Sun B. the moon C. running water?
B. the Moon
What creates geothermal energy? A. Heat deep inside the Earth B. running water C. the Sun D. wind
A. Heat deep inside the Earth
Why is solar energy considered to be a renewable source? A. The Sun's energy won't run out for billions of years. B. Solar energy is cheaper than fossil fuels. C. The Sun provides energy to plants and animals.
A. The sun's energy won't run out for billions of years.
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