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8
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Source of energy which isn't easily produced as fast as it's normally used.
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9
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Operates alongside with the water cycle.
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10
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Not readily available on the Earth as it's only located in certain areas.
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11
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Requires a large amount of sunlight which isn't readily available on Earth.
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12
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Its purpose is to prevent harmful radiation from being passed into our environment.
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13
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Sunlight and wind is an example.
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15
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A nonrenewable source of energy which comes from organisms that have died many years ago.
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16
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Not expensive to use; an energy resource made from plant and animal remains.
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17
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Source of energy which is easily replaced by nature.
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18
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Absorbs the sun
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1
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50% of homes in America use this for heating.
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2
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Sulfur dioxide and nitrogen oxide combine with the water in the air and causes this.
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3
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Bird and bats need to be cautious as they may get too close to a turning blade which is involved in this type of energy.
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4
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Fossil fuels are transported by rail, truck, ship and?
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5
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Can be converted into methane or alcohol.
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6
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A type of renewable resource when removed will grow back, hopefully in time to need it again.
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7
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Burning this causes smog which creates a foggy layer of air pollution.
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8
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Coal is an example.
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14
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Contains from a sedimentary rock; used for mining purposes.
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