1. what is the principle of isostasy and how does this process affect land elevations?
a stro...
1. what is the principle of isostasy and how does this process affect land elevations?
a strong answer will explain isostasy, including the role of the earth's mantle, perhaps using an analogy, and also explain how the earth's underlying mantle responds to continental loading, such as the presence of continental crust and/or expansive ice sheets'
2.
which set of values accurately reflect the average depth of the ocean and average elevation of the land?
ocean averages ~3750m deep; land averages 840 m high
ocean averages 840 m deep; land averages 3750 m high
ocean averages 11 km deep; land averages 8.85 km high
both ocean and land average 2.4 km deep and high, respectively.
3. which of the follow bathymetric/topographic features represents the largest cumulative area of the earth's surface?
ocean basin floors (abyssal plains)
ocean ridges
continental mountains
continental plains
continental shelf and slope
in which hemisphere is the total surface area of the ocean over four times that of land?
southern hemisphere
northern hemisphere
both hemispheres
neither hemispheres
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