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Verdich [7]
3 years ago
13

what are some different challenges we face today that technology could solve and how creative can we be

History
1 answer:
victus00 [196]3 years ago
4 0
We Could Invent a Power Outage Warning Device that Alerts us if out power goes out 1-2 days before it happens
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The Atlantic Ocean is currently increasing in size due to the mid-ocean ridge. Explain why the Earth is not increasing in size.
ZanzabumX [31]

Answer:

The massive mid-ocean ridge system is a continuous range of underwater volcanoes that wraps around the globe like seams on a baseball, stretching nearly 65,000 kilometers (40,390 miles). The majority of the system is underwater, with an average water depth to the top of the ridge of 2,500 meters (8,200 feet).

Mid-ocean ridges occur along divergent plate boundaries, where new ocean floor is created as the Earth’s tectonic plates spread apart. As the plates separate, molten rock rises to the seafloor, producing enormous volcanic eruptions of basalt. The speed of spreading affects the shape of a ridge – slower spreading rates result in steep, irregular topography while faster spreading rates produce much wider profiles and more gentle slopes.

Two well-studied mid-ocean ridges within the global system are the Mid-Atlantic Ridge and the East Pacific Rise. The Mid-Atlantic Ridge runs down the center of the Atlantic Ocean, slowly spreading at a rate of 2 to 5 centimeters (0.8 to 2 inches) per year and forming a rift valley that is about the depth and width of the Grand Canyon. In contrast, the East Pacific Rise spreads fast, at rates of 6 to 16 centimeters (3 to 6 inches) per year. Due to the fast spreading rates, there is no rift valley in the Pacific, just a smooth volcanic summit with a crack along the crest that is much smaller than the Atlantic rift valley.

Despite being such prominent feature on our planet, much of the mid-ocean ridge system remains a mystery. While we have mapped about half of the global mid-ocean ridge in high resolution, less than one percent of the mid-ocean ridge has been explored in detail using submersibles or remotely operated vehicles.

By funding expeditions to spreading centers in the Atlantic and the Pacific, the NOAA Office of Ocean Exploration and Research is helping scientists to draw connections between volcanic, tectonic, hydrothermal, and biological systems in order to better understand the Earth’s remarkable, evolving geography.

Explanation:

<h2><u><em>I hope it helps?~ </em></u></h2><h2><u><em></em></u></h2>
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In the 1950s, Americans were afraid of communism because of the widespread belief that communist ideology would infect the country and persuade citizens to turn against democracy and capitalism. This rampant fear and suspicion caused many people to dread not only communism, but being accused of communist sympathies themselves. Americans also feared communism in the form of the Soviet Union, a communist, rival country which had proven itself a viable military threat through its nuclear weapons program.

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0.2 …?

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