Dynamic planet

see attached for instructions

“A Dynamic Planet” Please respond to the following:

Note: Online students, please select one of the questions to answer.

Describe how Wegener’s continental drift hypothesis has helped to shape modern plate tectonic theory, and why his hypothesis was not widely accepted by his peers when first proposed. Analyze the types of evidence used to support plate tectonic theory.

From the third and fourth e-Activities, compare and contrast the mass extinction event at the end of the Permian (~250 Mya) with the mass extinction event at the end of the Cretaceous (~65 Mya). Include a discussion of the causes, the type of life forms impacted, the extent of the extinction, and the probability of a similar event occurring in the future.

E-ACTIVITIES TO ANSWER ABOVE QUESTIONS

· Watch the video titled “Mass Extinction” (13 min 16 s). Be prepared to discuss. Video Source: NOVA scienceNOW. (2006, November 21). Mass Extinction [Video file]. Retrieved from

http://www.pbs.org/wgbh/nova/earth/mass-extinction.html

. 

Watch Video

· Read the article titled “Mass Extinction: Expert Q&A” located at

http://www.pbs.org/wgbh/nova/earth/erwin-extinction.html

. Be prepared to discuss.