What two types of volcanic features result from volcanism above a mantle plume? How are hot spots
related to plate boundaries? What will be an ideal response?
Mantle plumes are responsible for linear chains of volcanoes in the oceans, as seen in the Hawaii-
Emperor Chain. They are also responsible for flood basalts, vast flat-lying areas of overlapping lava
flows. Hot spots are not related to plate boundaries; most cause intra-plate volcanism.
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The lower atmosphere is a homogeneous mixture of gasses with nitrogen and oxygen being the most abundant
Indicate whether the statement is true or false
Prior to the transgression of epeiric seas in the Middle Cambrian, the North American craton had been undergoing weathering and ____________________
Fill in the blank(s) with correct word
A firm that sells its products primarily to consumers outside its settlement is a
A) basic industry. B) functional classification. C) nonbasic industry. D) primate city. E) consumer service.
Which of the following is a type of radiation?
a. Delta b. Alpha c. Omega d. Theta