Author Question: Divergent plate boundaries are present under continents during the early stages of continental ... (Read 137 times)

rachel9

  • Sr. Member
  • ****
  • Posts: 495
Divergent plate boundaries are present under continents during the early stages of continental breakup. When magma wells up beneath a continent, the crust is initially elevated, stretched, and thinned, producing ___________________ _.
 Fill in the blank(s) with correct word

Question 2

Index, or guide, fossils are most useful because they ____.
 A)occur over small geographic region
 B)lived during a brief period of geologic time
 C)rarely occur
 D)lived over a long period of geologic time
 E)are found in all types of rock



frogdreck123456

  • Sr. Member
  • ****
  • Posts: 329
Answer to Question 1

rift valleysfracturesfau ltsvolcanic activity

Answer to Question 2

B



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

Did you know?

Never take aspirin without food because it is likely to irritate your stomach. Never give aspirin to children under age 12. Overdoses of aspirin have the potential to cause deafness.

Did you know?

Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.

Did you know?

Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

Did you know?

Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

For a complete list of videos, visit our video library