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Why can a ridge area be called a spreading zone?

Answer and explanation

Correct answer: Because new material can form and spread on both sides

A ridge, especially a mid-ocean ridge, is an elevated zone where material from below can rise and contribute to the formation of new oceanic crust. As new material is added, older crust is pushed away from the ridge on both sides. This process is called seafloor spreading and explains why the ridge is described as a spreading zone.

Option A gives the correct reason: new material forms and spreads outward in two directions. Rivers, farms, and clouds do not define the geological meaning of a ridge in this context. The word “spreading” refers to the movement and creation of ocean floor, not to ordinary surface features. Thus option A follows from the connection between ridge formation and seafloor spreading.

Related tags

RidgeSpreading ZoneNew Ocean Floor

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