Briefly explain the concepts of "slab-pull" and "ridge-push."


In slab-pull, the subducting cold slab of lithosphere pulls the rest of the plate along as it descends into the asthenosphere. Ridge-push occurs because oceanic ridges are higher than the surrounding oceanic crust. Gravity pushes the oceanic lithosphere away from ridges and toward the trenches, where it is subducted back into Earth.

Environmental & Atmospheric Sciences

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Characteristics of a tropical cyclone

What will be an ideal response?

Environmental & Atmospheric Sciences

How are matter and mass related?

A. Mass is a component of matter. B. Matter is a component of mass. C. Mass takes up space, while matter does not take up space. D. Neither matter nor mass take up space. E. Both matter and mass take up space.

Environmental & Atmospheric Sciences

What is NOT one of the factors that influences stream discharge?

A. drainage basin area B. depth of the channel C. velocity of the stream D. width of the channel E. seasonal high-water flow

Environmental & Atmospheric Sciences

The contents of areas are interrelated and constitute a(n):

A. connectivity. B. absolute distance. C. mental map. D. spatial system.

Environmental & Atmospheric Sciences