Efficiency refers to how much useful energy (electricity, in this case) we can get from an energy source...
Energy and recycling
Recycling means to use something again. Newspapers can be used to make new newspapers. Aluminum cans can be used to make new aluminum cans...
Energy and trees
You can help plant trees Planting a tree is a great way for kids like you to make a big impact on the environment...
Energy and wildlife
Some of the animals and plants that live near power lines are endangered, so we take special care to keep them safe...
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