A large depression left after a huge volcanic eruption is called a(n) _______________
Fill in the blank(s) with correct word
caldera
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The layer in the atmosphere where friction is important in determining wind speed:
A) thermosphere. B) ionosphere. C) planetary boundary layer. D) hydrosphere.
A rapidly moving ocean wave generated by an earthquake that is capable of inflicting heavy damage in coastal regions is called a(n) ________
A) syncline B) tsunami C) subsidence D) anticline
When the net force on an object equals zero, its acceleration
A. is zero. B. and velocity are the same. C. may be zero. D. none of the above
Which of the following events is not part of the history associated with the Big Bang Theory?
A) The first matter formed 380,000 years after the formation of the universe. B) About 13.7 billion years ago, our universe started with a huge explosion. C) Our Sun formed approximately 9 billion years after the universe formed. D) Just before Big Bang occurred, there was only energy and disassociated electrons and protons.