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<span>By 2009 hydroelectric power made up what percent of the energy the US produced from renewable energy sources
</span><span>Current trends. Percentage of electricity in the US generated from renewable sources 1950-2012; hydropower in blue and other renewable sources in red. Renewable energy in the United States accounted for 13.44 percent of the domestically produced electricity in 2015.
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So it’s fair and no one holds too much power to change it
Answer: The school board wants you to answer C) Agricultural Revolution, but that is incorrect.
The correct answer would be during the Neolithic Era, so none of the choices would be the right answer.
Explanation: During the Paleolithic Era, which corresponds to the old stone age, people were hunter-gatherers. This means that they obtained food by hunting animals and by gathering fruits, vegetables, and nuts from local plants. So options A and B are pretty much the same thing and incorrect.
Domestication and pastoralism developed during the Neolithic or new stone age when people discovered that, if they took care of certain plants, they would grow again and give them more food. Domestication is not the same thing as agriculture (even though the school system continues to teach it this way).
The Agricultural Revolution actually refers to a much later period in history, during the 18th century in Britain, when traditional agriculture went through a process of transformation. This is way after domestication and pastoralism.
Finally, option D is also incorrect because classical civilizations like Greece and Rome already had full-scale agriculture and had already gone through the process of domestication and pastoralism.
There were 4 laws in the Middle Ages
A type of rock that forms directly from precipitates of hot water is called a <u>hydrothermal</u> rock
What is a hydrothermal rock?
- Hydrothermal essentially means “hot water.”
- Hydrothermal rocks are those rocks whose minerals crystallized from hot water or whose minerals have been altered by hot water passing through them.
- Thus, these rocks are distinct from metamorphic rocks, which are created by solid‐state mineral transformations.
- In fact, many hydrothermal rocks (such as those that form from hot springs and geysers or crystallize as veins in cracks in other rocks) actually build up in layers, much as sedimentary rocks do.
- Veins result when hot water moves through cracks in the bedrock of the crust.
- Various minerals are precipitated on the sides of the crack as the temperatures decrease.
- The shape and orientation of the minerals depends on the temperature, pressure, and rate of flow.
- When all the available space in the crack has been filled with mineral deposits, the crack is sealed and the vein is complete.
To know more about hydrothermal rocks, refer:
brainly.com/question/1567365
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