Answer:
Magma wells up at the center of the ridge, which pushes the old seafloor apart as new seafloor is created
Explanation:
The Mid-Atlantic Ridge is formed at the divergent boundaries of the North American and Eurasian plates, and the South American and African plates. This basically means that these plates are moving away from one another, living thinner, fragile crust behind them. The magma from the mantle manages to penetrate through it relatively easy, and as it reaches the ocean floor it quickly cools off and creates new crust. The magma continuously rises, and it piles up more and more new crust, while in meantime pushing the old crust sideways and moving it further away from center of the ridge from the the ocean spreading occurs.
Answer:
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Explanation:
Answer: Most tsunamis are caused by large earthquakes below or near the ocean floor, but tsunamis can also be caused by landslides, volcanic activity, certain types of weather and near earth objects (e.g., asteroids, comets). Not all earthquakes cause tsunamis.
Explanation:
Are their any multiple answer's ?
As global temperatures decrease, ice cover increases causing higher albedo which causes temperature to continue to drop is an example of positive mechanism.
<h3>What is Ice Albedo?</h3>
A significant component of global climate change is ice-albedo feedback. Surface albedo falls in the polar zone as snow and ice area declines, and the intensified solar heating further reduces the snow and ice area.
A positive feedback loop is exemplified by the ice-albedo feedback. A feedback loop is a cycle within a system that alters the impact on it, either positively or negatively.
Therefore if ice cover increases then the global warming is decreases as climatic conditions changes. It is a positive feedback.
To know more about Ice Albedo refer:
brainly.com/question/20297246
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