Subduction is the process of one lithospheric plate descending beneath another. Why does the oceanic portion of the lithosphere undergo subduction while the continental portion does not?

What will be an ideal response?


Oceanic crust is more dense than continental crust, so buoyancy inhibits the subduction of continental crust.

Environmental & Atmospheric Sciences

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The range of environmental conditions frequently found in ecotones make them areas of high biodiversity

Indicate whether the statement is true or false

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Which of the following will have activity of 1.0 Ci?

A) 1.0 g of naturally occurring Ra B) 1.0 kg of naturally occurring Ra C) 1.0 g of pure 286Ra D) 1.0 kg pure 286Ra

Environmental & Atmospheric Sciences

Water is a national security issue.

Answer the following statement true (T) or false (F)

Environmental & Atmospheric Sciences

Which piece of glassware do we generally use to deliver a predetermined fixed volume of solution in a titration?

A) an Erlenmeyer flask B) a graduated cylinder C) a volumetric pipet D) none of the above

Environmental & Atmospheric Sciences