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Energy on Earth

Across
Gravitational forces between the moon and the Earth. Always have as long as there is a moon Renewable
Unlimited amount of heat generated by Earth's core Renewable
Natural substance that cannot be re-made, re-grown, or regenerated as fast as it is used
Comes directly from organic matter wood, crop waste, garbage Renewable
Supported by the water cycle, renewable Renewable
Radioactive; Uranium is often used to and it is Nonrenewable
Contains 90% gas and 10% alcohol Nonrenewable
Burn coal to generate heat Nonrenewable
Power received from natural and chemical resources to run machines
Down
Produced by renewable sources of energy like wind or solar power.
Can be both renewable and nonrenwable depending on the source used in most homes to run lights, etc.
Process to produce energy using temp differences in the ocean and tropical waters Renewable
Available in limited supply Nonrenewable; clue; natural
Comes from below the Earth. often pumped out Nonrenewable
Fuel made from animal matter which take millions of years to replenish Nonrenewable
Resource replenished naturally faster than it is consumed
Wind powered type of resource Renewable
Will run out
Sun Renwable
A barrier to hold back water