Samuel Morse's telegraph line between Washington, D.C. and Baltimore was successful.
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Your answer would be "D"
So that you can use the most effective strategy to help persuade them. Being aware of your audience is important because you can try different strategies to grab attention and convince.
Answer:
Wind, water, tide and muscle - both animal and human - provided sources of energy that are still available to man and are still used to power simple machines in many parts of the world today.
