Hydropower is one of the oldest renewable resources and has been used for thousands of years.
Answer:
Salt water
Explanation:
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CATGGATCCA for future reference this is considered biology, you may get a quicker response if you categorize it as such :)
Yes, because it comes from a one thing and spreads throughout the entire space. Similar to dripping foot coloring into a glass of water, or spraying air freshener.