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Author Question: Volcanic eruptions destroy buildings and productive land, and cause injuries and fatalities to life. ... (Read 8 times)

lindiwe

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on: Jul 13, 2018
Volcanic eruptions destroy buildings and productive land, and cause injuries and fatalities to life. Why, then, is volcanism considered a constructive process?

Question 2

What do cyclothems represent?
 A)volcanism
 B)evaporation
 C)transgressive and regressive cycles
 D)transgression only
 E)regression only


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Benayers

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Reply #1 on: Jul 13, 2018
Answer to Question 1

Volcanic emissions played an important role in the origin and evolution of the atmosphere and hydrosphere. The continents are composed in part of volcanic and plutonic rocks, and oceanic crust is produced igneous activity. In addition, weathering of lava flows, pyroclastic materials and volcanic mudflows converts them to productive soils.

Answer to Question 2

C


lindiwe

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Reply 2 on: Jul 13, 2018
Thanks for the timely response, appreciate it

coreycathey

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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