GROWTH DEVELOPMENT CHILD
FORMATIVE ASSESSMENT
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Seamounts or Mid-Ocean Ridge
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Mountain Ridge
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Coastal Plains
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Abyssal Plains
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Detailed explanation-1: -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).
Detailed explanation-2: -Seamounts are underwater mountains that rise hundreds or thousands of feet from the seafloor. They are generally extinct volcanoes that, while active, created piles of lava that sometimes break the ocean surface.
Detailed explanation-3: -Two of the most well-known mid-ocean ridges are the Mid-Atlantic Ridge and the East Pacific Rise. As you might guess, most of the Mid-Atlantic Ridge is in the Atlantic, and most of the East Pacific Rise is in the Pacific.
Detailed explanation-4: -Submarine volcanoes are found deep on the ocean floor. They can erupt just as violently as volcanoes found on dry land. Also known as seamounts (underwater mountains), submarine volcanoes can be just as violent and in some cases larger than those on land.
Detailed explanation-5: -Volcanoes can sometimes form in these setting; one example is Iceland. Iceland lies on the Mid Atlantic Ridge, a constructive plate boundary, where the North American and Eurasian plates are moving away from each other. As the plates pull apart, molten rock (magma) rises up and erupts as lava, creating new ocean crust.