Which condition best describes North America during the Cambrian? equatorial; rotated ~90o clockwise from present equatorial;...

Which condition best describes North America during the Cambrian?

equatorial; rotated ~90^o clockwise from present
equatorial; rotated ~90^o counterclockwise from present
polar; rotated ~90^o clockwise from present
polar; rotated ~90^o counterclockwise from present

Which orogeny represents the first major mountain building event along the east coast of North America during the Paleozoic?

Acadian b. Appalachian c. Cordilleran d. Taconic

The Martinsburg Formation represents sediment derived from mountains formed during the _____ Orogeny.
1. Acadian b. Appalachian c. Cordilleran d. Taconic
Which group of organism represents about 50% of the fossils found in Cambrian rocks?
1. ammonites b. brachiopods c. pelecypods d. trilobites
What modern group of organisms is most likely related to archaeocyathids?
1. brachiopods b. cephalopods c. corals d. sponges

Solutions

Expert Solution

Which condition best describes North America during the Cambrian?

ans-polar; rotated ~90^o counterclockwise from present

link is here which shows perfectly movement of plates

https://www.youtube.com/watch?v=UwWWuttntio

Which orogeny represents the first major mountain building event along the east coast of North America during the Paleozoic?

Ans-b. Appalachian

3. The Martinsburg Formation represents sediment derived from mountains formed during the _____ Orogeny.

Ans- b. Appalachian

4. Which group of organism represents about 50% of the fossils found in Cambrian rocks?

Ans-d. trilobites

5.What modern group of organisms is most likely related to archaeocyathids?

Ans-c. corals

Amanda K answered 1 year ago

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