Ocean spreading centers are highlands on the ocean floor, sometimes referred to as submarine mountains. Oceanic crust worldwide is about the same thickness so isostasy would suggest the ocean floor should be as flat as Kansas

Which of the following statements best describes the origin of these submarine mountains?
A) Compression at the ridges produce local uplift along the ridge axis.
B) The ridges represent upwelling zones from the core which produces a bulge at the earth's surface.
C) The mantle beneath the ridges remains hot for millions of years producing an elevated region along the ridge axis because hot rocks are lower density than cold rocks.
D) The ridges are sites of young volcanos that produce high topography on the sea floor, like Hawaii.


C

Environmental & Atmospheric Sciences

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At which location would the Coriolis force deflection be the least?



A) A
B) B
C) C
D) D

Environmental & Atmospheric Sciences

All are true except

A. Most of the surface of Antarctica is covered in ice and snow. B. The Transantarctic Mountains are an extension of South America's Andes Mountains. C. The Antarctic was never part of Gondwanaland. D. The majority of Antarctica's terrestrial extent lies in East Antarctica.

Environmental & Atmospheric Sciences

Define the term emergent properties and give an example from a natural system

What will be an ideal response?

Environmental & Atmospheric Sciences

The _________ includes both oceans and freshwater sources such as lakes and rivers

Fill in the blank(s) with correct word

Environmental & Atmospheric Sciences