Continental rifting begins when plate motions produce ________ forces that pull and stretch the lithosphere
A) compressional
B) tensional
C) shear
D) magnetic
Answer: B
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The recent volcanic activity in Yellowstone National Park is caused by
A) subduction
B) a divergent plate boundary
C) intraplate volcanism
D) a transform plate boundary
The element silicon has a melting point of 1,410°C and a boiling point of 2,355°C. It is a weak conductor of electricity, its density is 2.3 grams per cubic centimeter and it easily forms silicon dioxide when exposed to air
Which of the following is a chemical property of silicon? A) its ability to conduct electricity B) its density C) its melting point D) its ability to react with oxygen E) C and D
Creating and restoring wetlands has become a profitable business.
Answer the following statement true (T) or false (F)
The record precipitation received in a single year was
A) in Cambodia in Southeast Asia. B) Atacama Region in South America. C) in the Amazon rainforest in Brazil. D) in the southern tip of the Florida peninsula in the United States. E) in the Assam Hills in India, south of the Himalayas.