(1) With the aid of neat, informative, well-labeled sketch(es) explain the afterward apropos mid-ocean ridges and the action of seafloor spreading: (One abounding page) How and area amphibian band forms? How and why the age of the amphibian band changes as you move abroad from the mid-ocean ridge? How and why the array of debris on top of the amphibian band varies as you move abroad from the midocean ridge? How and why the acclivity of the seafloor changes as you move abroad from the mid-ocean ridge?
(2) With the aid of neat, informative, well-labeled sketch(es) explain the appearance that anatomy as a aftereffect of an amphibian tectonic bowl (lithospheric bowl capped by amphibian crust) affective over a hotspot. ( ½ to ¾ of a page) Include the following: What is a crimson alias and how and area does it aftermath agitable activity? The accord amid abolished and alive volcanoes with account to the hotspot. Include a abridged account and map of the Hawaiian Islands (Hawaii through Kauai only) that indicates the about ages (which are older/younger), the position of the abreast hotspot, and the accord amid bowl motion and the ages of the agitable islands.
(3) Explain briefly how the processes of slab cull and backbone advance advice drive bowl motion. ( 1/3 to ¼ of a page)
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