In most cases, the distance between the seismically slow upwelling zone and the closest downwelling zone is
A) much greater than the thickness of the convecting mass.
B) much less than the thickness of the convecting mass.
C) about the same as the thickness of the convecting mass.
D) about the same as the thickness of the mantle.
Answer: A
You might also like to view...
How far does the 1000-year lahar extend from the summit?
What will be an ideal response?
Wind-blown sedimentary deposits tend to be very well sorted. Indicate whether the statement is true or false
________ is the most common element in the Earth's crust.
A. Oxygen B. Magnesium C. Hydrogen D. Iron E. Fluorine
Synthetic crude oil can be made through a process of liquefying coal. What is the primary problem with using coal to help meet the growing demand for oil?
A. additional technology is required B. cannot produce gasoline from coal C. new technology is required D. coal reserves are limited E. higher carbon dioxide emissions