Author Question: The Franciscan Group rocks are a chaotic assemblage because they ____. A)represent ocean rift zone ... (Read 52 times)

Coya19@aol.com · **on:** Jul 13, 2018

The Franciscan Group rocks are a chaotic assemblage because they ____.
A)represent ocean rift zone sediments
B)represent deposition in an active deep ocean trench
C)represent complex intrusion along a fault zone
D)are high grade metamorphic rocks
E)were deposited in a fault zone

Question 2

Why do desert streams rarely reach an ocean? What makes rivers such as the Nile, Colorado, and Rio Grande exceptions to the rule?

debra928 · **Reply #1 on:** Jul 13, 2018

Answer to Question 1

B

Answer to Question 2

Desert streams do not flow regularly. They may rage for a while after a heavy rain, but because the water table is so low, they cannot use groundwater to replace water that is eventually lost via evaporation.

Major rivers like the Nile, Colorado and Rio Grande can flow because their headwaters originate in regions outside of the desert and water is plentiful enough to offset losses from evaporation and infiltration.