GEOLOGY

EARTH SCIENCE

TECTONICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The Atlantic Ocean has a large mid-ocean ridge. New seafloor continuously forms at this ridge.What will happen to the Atlantic Ocean over long periods of time?
A
It will stay the same.
B
It will get wider.
C
It will move toward the west.
D
It will get smaller.
Explanation: 

Detailed explanation-1: -The answer will not change any size. The size will remain the same.

Detailed explanation-2: -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.

Detailed explanation-3: -The Mid Atlantic Ridge, like other ocean ridge systems, has developed as a consequence of the divergent motion between the Eurasian and North American, and African and South American Plates.

Detailed explanation-4: -Seafloor spreading or Seafloor spread is a process that occurs at mid-ocean ridges, where new oceanic crust is formed through volcanic activity and then gradually moves away from the ridge.

Detailed explanation-5: -The MAR is about 3 km in height above the ocean floor and 1000 to 1500 km wide, has numerous transform faults and an axial rift valley along its length. The ridge was discovered in the 1950s. Its discovery led to the theory of seafloor spreading and general acceptance of Wegener’s theory of continental drift.

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